Nghi Nguyen
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Nghi Nguyen's Discussions

The New AC Method to factor trinomials

Started this discussion. Last reply by Nghi Nguyen Aug 13, 2015. 3 Replies

Factoring trinomials is a main subject of high school math. The AC Method has been so far the most popular one to factor trinomials. However, this method can be considerably improved if we apply the…Continue

The New AC Method for solving quadratic equations

Started Jan 30, 2015 0 Replies

So far, the factoring AC Method has been the most popular to solve quadratic equations in standard form that can be factored. However, this method can be considerably improved if we apply the Rule of…Continue

The New AC Method for solving quadratic equations

Started Jan 28, 2015 0 Replies

So far, the existing Factoring AC Method (YouTube)has been the most popular method to solve quadratic equations. However, it can be considerably improved if we add into its solving process the Rule…Continue

The Transposing Method for solving linear equations

Started this discussion. Last reply by Nghi Nguyen Feb 11, 2016. 1 Reply

There are some differences between the US basic solving process for algebra equations and inequalities and the world wide one. We teach students to solve equations by observing the principle of…Continue

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Latest Activity

Nghi Nguyen replied to Nghi Nguyen's discussion The Transposing Method for solving linear equations
"This article explains the advantages of the transposing method in solving algebraic equations and inequalities. It proposes to begin teaching students this method at pre-algebra and algebra I classes."
Feb 11, 2016
Nghi Nguyen replied to Nghi Nguyen's discussion The New AC Method to factor trinomials
Aug 13, 2015
Nghi Nguyen replied to Nghi Nguyen's discussion The New AC Method to factor trinomials
Aug 13, 2015
Nghi Nguyen replied to Nghi Nguyen's discussion The New AC Method to factor trinomials
"This article has been updated on 7/12/2015."
Jul 13, 2015
Nghi Nguyen posted a discussion

The New AC Method to factor trinomials

Factoring trinomials is a main subject of high school math. The AC Method has been so far the most popular one to factor trinomials. However, this method can be considerably improved if we apply the Rule of Sign into its solving approach.The improved method, called by the author of this article,"The New AC Method for factoring trinomials" proceeds faster and avoids the lengthy factoring by grouping.The strong points of this new method are: simple, fast, no guessing, systematic, no factoring by…See More
Mar 6, 2015
Nghi Nguyen posted discussions
Feb 1, 2015
Nghi Nguyen posted a discussion

The Transposing Method for solving linear equations

There are some differences between the US basic solving process for algebra equations and inequalities and the world wide one. We teach students to solve equations by observing the principle of balancing the two sides of an equation. The common saying is likely:"Do the same thing to the right side what you did to the left side". On the contrary, the world wide solving process performs by transposing terms from one side to another, while always keeping the equation balanced. The likely saying…See More
Jan 9, 2015
Nghi Nguyen posted a discussion

Convert quadratic functions from form to form, and vice versa.

Conversion of a quadratic function from one form to another (standard form, intercept form, vertex form) is extra-learning that provides students with a better understanding of the various aspects of the quadratic functions and quadratic equations.This article explains general methods to convert quadratic equations from one form to another.See More
Dec 5, 2014
Nghi Nguyen posted discussions
Dec 1, 2014
Nghi Nguyen posted discussions
Nov 27, 2014
Nghi Nguyen replied to Nghi Nguyen's discussion Converting a quadratic function, in Standard form, to Intercept Form & Vertex Form
"This article was updated on Nov 27, 2014"
Nov 26, 2014
Nghi Nguyen posted discussions
Nov 26, 2014
Nghi Nguyen posted a discussion

The Quadratic Function and the new Quadratic Formula in Intercept Form

There are so far 8 common methods to solve quadratic equations. When the given quadratic equation can't be factored, the quadratic formula is the obvious choice to solve it. There is a new quadratic formula in intercept form that is simpler and easier to remember.See More
Nov 18, 2014
Nghi Nguyen posted a discussion

Solving trigonometric equations, Concept and methods

This article generally explains the concept and methods for solving trig equations. This concept has been popular in Europe and it provides a needed key to solve all trig equations and inequalities. Solving trig equations is a tricky work. Answers should be always carefully checked.This article will help students to excel in trig classes and to be ready for further college studies. This article was updated on Nov 05, 2014.See More
Nov 4, 2014
Nghi Nguyen replied to Nghi Nguyen's discussion Best method to solve quadratic inequalities
"This article:"Best Method to Solve Quadratic Inequalities" was updated on Oct 30, 2014"
Nov 3, 2014
Nghi Nguyen replied to Nghi Nguyen's discussion Solving trigonometric inequalities - methods and steps
"This article "Solving trigonometric inequalities"" has been updated on Nov 03, 2014."
Nov 3, 2014

Profile Information

How did you hear about Math Concentration?
On Google Search
Are you a parent, teacher, student, other?
other
Do you have a website?
http://No
About Me:
Retired Math Tutor.
Co-author of 3 math books.
- "New methods for solving quadratic equations and inequalities" (Amazon e-book 2010).
- Solving trig equations and inequalities" (Trafford Publishing)

Comment Wall (2 comments)

At 7:00pm on March 19, 2014, Frank kwabena said…

Good Day,

How is everything with you, I picked interest on you after going through your short profile and deemed it necessary to write you immediately. I have something very vital to disclose to you, but I found it difficult to express myself here, since it's a public site.Could you please get back to me on:( mr.frankkwabena0044@yahoo.com.hk ) for the full details.

Have a nice day

Thanks God bless.

Mr.Frank

At 4:13pm on August 2, 2014, FRANK KWABENA said…


Good Day,

How is everything with you, I picked interest on you after going through your short profile and deemed it necessary to write you immediately. I have something very vital to disclose to you, but I found it difficult to express myself here, since it's a public site.Could you please get back to me on:( mr.frankkwabena3333@gmail.com ) for the full details.

Have a nice day

Thanks God bless.

Mr Frank.

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Notes

Figure This Challenge #56

  • Complete Solution will be given on May 17, 2015

Complete Solution:

 …

Continue

Created by Wanda Collins May 10, 2015 at 1:56pm. Last updated by Wanda Collins May 10, 2015.

Math Homework Help Online

Fun Math Facts:

Math Limerick

Question: Why is this a mathematical limerick?

( (12 + 144 + 20 + 3 Sqrt[4]) / 7 ) + 5*11 = 92 + 0 .

Answer:

A dozen, a gross, and a score,
plus three times the square root of four, divided by seven, plus five times eleven, is nine squared and not a bit more.

---Jon Saxton (math textbook author)

Presentation Suggestions:
Challenge students to invent their own math limerick!

The Math Behind the Fact:
It is fun to mix mathematics with poetry.

Resources:

Su, Francis E., et al. "Math Limerick." Math Fun Facts.

funfacts

Pre-K, Kindergarten, First, Second, Third, Fourth, Fifth, Sixth, Seventh, Eighth, Ninth, Tenth, Eleventh, Twelfth, Higher Education, Adult Education, Homeschooler - TeachersPayTeachers.com

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