which expression is the factor

label Algebra
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schedule 1 Day
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which expression is a factor of 6x2+7x-20

options:

3x-4

2x-5

3x+4

4x-3

May 12th, 2015

The expression factors to (3x - 4)(2x + 5);  you can FOIL to confirm.

So the first choice is the correct choice.

Hope this helps.

May 12th, 2015

how did u solve the problem though ? im having a hard time doing this.

May 12th, 2015

Factoring can be tricky.  For this problem, you have to start with the 6x^2.  There are basically two ways you can get 6x^2; 6x times x   and   2x  times  3x.   Then you look at the -20; There are a few more ways to get this;  1 times 20,  2 times 10, and 4 times 5.  Since they gave you choices, you could try each out until you found one that worked.  If you don't have choices, you just have to try different combinations until it works.

May 12th, 2015

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May 12th, 2015
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May 12th, 2015
Sep 24th, 2017
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