How do you simplify (x^2-16)/(3x^2+10x-8) ?

2 Answers
Sep 4, 2016

(x-4)/(3x-2).

Explanation:

The Expression=(x^2-16)/(3x^2+10x-8)

={(x-4)(x+4)}/{ul(3x^2+12x)-ul(2x-8)}

={(x-4)(x+4)}/{3x(x+4)-2(x+4)}

={(x-4)cancel((x+4))}/{(3x-2)cancel((x+4))}

=(x-4)/(3x-2).

Sep 4, 2016

((x-4))/((3x-2))

Explanation:

In an algebraic fraction, only factors can be cancelled.

Find the factors in the numerator and denominator.

(x^2 -16)/(3x^2 +10x -8) " " (larr"difference of squares")/(larr"quadratic trinomial")

=(cancel(x+4)(x-4))/((3x-2)cancel(x+4)) = ((x-4))/((3x-2))