SOLUTION: find all the roots and check answer. x 2nd + 5x-14=0

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Question 723706: find all the roots and check answer. x 2nd + 5x-14=0
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
x^2 + 5x-14=0
(x+7)(x-2)=0
x+7=0
x=-7 ans.
x-2=0
x=2 ans.
proofs:
-7^2+5(-7)-14=0
49-35=-14
-14=-14
2^2+5*2-14=0
4+10-14=0
14-14=0
0=0