Question

Factor by grouping (sometimes called the ac-method) 12x^2-5x-2

Answer 1

HI,

Explanation:

Here is the AC-DC method:

`12x^2-5x-2\\\\=12x^2+3x-8x-2\\\\=3x(4x+1)-2(4x+1)\\\\=(4x+1)(3x-2)\\\\`

Or this other highway to Hell:

`12x^2-5x-2\\\\=12x^2-8x+3x-2\\\\=4x(3x-2)+(3x-2)\\\\=(3x-2)(4x+1)\\`