Factor Completely...i completely forgot how?

Question

hey guys thanks in advance but i have math hw and i did most of the worksheet just im stuck on sum i took this lats year its just a review sheet but i furgot how to do sum

2x²+14x-60
i got to ...
(2x+___) (x-___) but iddnt know what to do next

and if u know this ... it looks SO easy but im braindead

Xª+³ - Xª+²

Answer 1

You posted this question twice, and so far, NOBODY has factored it completely!

First, factor out the 2. (Nobody did this!)

2x^2 + 14x - 60 = 2(x^2 + 7x - 30)

Then factor again to get 2(x+10)(x-3). That's your first answer.

Now for the second problem.

x^(a+3) - x^(a+2) = x*x^(a+2) - x^(a+2)

Factor out x^(a+2) to get

x^(a+2)(x+1)

That's your second answer.

Answer 2

(2x +20) (x-3)