Question

How do you factor the expression `10x^2+7x-12`?

Answer 1

`=(2x+3)(5x-4)`

Explanation:

`10xx12=120=15xx8`
15-8=7
`10x^2+7x-12`
`=10x^2+15x-8x-12`
`=5x(2x+3)-4(2x+3)`
`=(2x+3)(5x-4)`