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# ​ simplify, please show me how you got the answer also.

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simplify

Hev123  Mar 4, 2018
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x^2 + x  - 12    factors  as   (x + 4) ( x - 3)

3x^2 + 11x  - 4 factors as  ( 3x - 1) (x + 4)

x^2 - 4  =  (x + 2) (x - 2)

So we have

(x + 4) ( x - 3)

___________

(x - 2)

_______________         =

(3x - 1) ( x + 4)

____________

(x + 2) ( x - 2)

(x + 4) ( x - 3)           (x + 2) ( x - 2)

____________    *   ____________       =

(x - 2)                 (3x - 1) (  x + 4)

(x + 4) ( x - 3) ( x + 2) ( x - 2)

______________________    =

(x - 2) ( 3x - 1) ( x + 4)

(x - 3) ( x + 2)

___________     =

3x - 1

x^2 - x - 6

________

3x - 1

CPhill  Mar 4, 2018

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