SOLUTION: 4x^2-49=0

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Question 258465: 4x^2-49=0
Answer by checkley77(12844) About Me  (Show Source):
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4x^2-49=0
(2X+7)(2X-7)=0
2X-7=0
2X=7
X=7/2=3.5 ANS.
2X+7=0
2X=-7
X=-7/2=-3.5 ANS.