SOLUTION: 16x^2-49=0

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Question 155404: 16x^2-49=0
Answer by checkley77(12569) About Me  (Show Source):
You can put this solution on YOUR website!
16x^2-49=0
(4X+7)(4X-7)=0
4X+7=0
4X=-7
X=-7/4 ANSWER.
4X-7=0
4X=7
X=7/4 ANSWER.
PROOF:
4(-7/4)^2-49=0
4*49/4-49=0
49-49=0
0=0