SOLUTION: x^2+10x+21=0 Please help factor this, thank you

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: x^2+10x+21=0 Please help factor this, thank you      Log On


   

Question 181891This question is from textbook
: x^2+10x+21=0 Please help factor this, thank you This question is from textbook

Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
x^2+10x+21=0
.
(x+3)(x+7) = 0
.
Thus:
x = {-3, -7}