can someone help me figure this problem out step by step?: x^2+2x-15=0

Question

anonymous · Answer

$$x^{2}+2x-15=0 $$
$$(x+5)(x-3)$$
This is the simplified way to write this problem.

hero · Answer

So much for the "step by step"

hero · Answer

@moody

anonymous · Answer

what would you have to do after putting it in the simplified way?

anonymous · Answer

what would you have to do after putting it in the simplified way?

anonymous · Answer

What are they asking you to do with this problem?

anonymous · Answer

solve it

hero · Answer

Step by Step would essentially be to factor by grouping to show the logical steps. For example:

$x^2 + 2x - 15 = 0$ 

You would split the middle term to get:

$x^2 + 5x - 3x - 15 = 0$

Then factor the first two terms and the last two terms to get:
$x(x+5) - 3(x+5) = 0$

Then factor out x + 5 to get:

$(x+5)(x-3) = 0$

Then finish solving from there. 

The complete steps required two find the middle two terms (without guessing) are much longer.