Question 364509
<pre><font size = 3 color = "indigo"><b>
Hi, 
factor completely 
x^2+2x-80
Expresssing as a product (x + ?)(x- ?) signs according to trinomial given
x^2 + 2x - 80
(x + ?)(x - ?)
Ask your self what two numbers have a difference of 2 and a product of 80??
(x + 10)(x - 8)   10x-8x = 2x  and 8*10 = 80