Question

What is the simplest form of the expression below 2x^2 - 10x -28 x 6/ 6x x x-7

Answer 1

A

Explanation:

`(2x^2-10x-28)/(6x)` ×
`(6)/(x-7)` ← factor the quadratic

=
`(2(x+2)(x-7))/(6x)` ×
`(6)/(x-7)` ← cancel the factor (x - 7) and 6

=
`(2(x+2))/(x)` × 1

=
`(2x+4)/(x)`