Question

Factor this trinomial completely.
12x2 + 8x - 15

Answer 1

My answer would be=8x+9

Answer 2

`(6x-5)(2x+3)`

Explanation:

The numbers that multiply to give
`a\cdot{c}=12\cdot{-15}=-180` yet add to give
`b=8` are 18 and –10.

`12x^(2)+8x-15\\12x^(2)+18x-10x-15\\6x(2x+3)-5(2x+3)\\(6x-5)(2x+3)`