Question

factor 8x^2+2x-15

Answer 1

Split the middle term like this:

\[8x^2 + 12x - 10x - 15\]

Now take common from first and last two terms:

\[\large 4x(2x + 3) - 5(2x + 3) = (4x-5)(2x+3)\]

Answer 2

it's 2x (the middle number) how can you split 2 into 12 and 10 ?

Answer 3

What will you get if you do this:

12x - 10x = ???

Answer 4

Ohh

Answer 5

Got??

Answer 6

I get that, now I dont understand how you got (4x-5)(2x+3)