Factor 6x^2-11x+4 with the AC Method

  • Thread starter kadavis2010
  • Start date
In summary, the conversation discusses a homework problem involving factoring a polynomial expression. The given expression is 6x^2 - 11x + 4. The attempt at a solution involves using the trial and error method and the AC method to find the factors of the expression. The correct factors are determined to be 6x+2 and x-2.
  • #1
kadavis2010
15
0

Homework Statement


6x^2-11x+4


Homework Equations


none


The Attempt at a Solution


MP
24
6x-2
6x+12

answer being: 6x+2 and x-2
 
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  • #2


By the trial&error method, for 6x^2 - 11x + 4,
(6x + ?)(x +... you know this one is no good.
(6x - ?)(x - ?)
(2x - ?)(3x - ?)

You get a product of 4 from any of these:
4=4*1=2*2
 
  • #3


thanks but it has to be an answer in like the form i stated. Or maybe i am just not understanding you...
 
  • #4


kadavis2010 said:

Homework Statement


6x^2-11x+4


Homework Equations


none


The Attempt at a Solution


MP
24
6x-2
6x+12

answer being: 6x+2 and x-2
Are you saying that the factorization is (6x + 2)(x -2)? Whether you are or aren't, these aren't the factors of 6x^2 -11x + 4.
 
  • #5


Try the AC method
6x^2-11x+4 coef for A=6; coef for c=4 product 6(4)=24;
find facors of 24 which can make 11 (3 and 8)
hth
 

1. What is factoring?

Factoring is the process of breaking down an algebraic expression into simpler terms that can be multiplied together to obtain the original expression.

2. How do I factor a polynomial expression?

To factor a polynomial expression, you can use the method of grouping, the quadratic formula, or the method of trial and error. In this case, we will use the method of grouping to factor 6x^2-11x+4.

3. How do I factor 6x^2-11x+4?

To factor 6x^2-11x+4, we first need to find two numbers that multiply to give us 6x^2 and add to give us -11x. These numbers are -3x and -2x. We can then split the middle term -11x into -3x and -2x and factor by grouping.

6x^2-3x-2x+4

3x(2x-1)-2(2x-1)

(3x-2)(2x-1)

4. Why is factoring important?

Factoring is an important skill in algebra as it allows us to simplify complicated expressions, solve equations, and identify patterns in numbers. It is also used in many real-life applications such as in the fields of engineering, physics, and economics.

5. What are some tips for factoring?

Some tips for factoring include looking for common factors, using the distributive property, and grouping terms with similar variables. It is also helpful to practice factoring different types of expressions to become more familiar with the process.

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