Question

How do you factor `12x^{2} + 7x y - 12y^{2}`?

Answer 1

`(3x+4y)(4x-3y)`

Explanation:

`12x^2+7xy-12y^2 = 12x^2+16xy-9xy-12y^2`

`12x^2+16xy-9xy-12y^2=4x(3x+4y)-3y(3x+4y) = (3x+4y)(4x-3y)`