SOLUTION: solve square root 4x^2-64=6 (the six is not square rooted)

SOLUTION: solve square root 4x^2-64=6 (the six is not square rooted)

Algebra.Com

Question 257206: solve
square root 4x^2-64=6
(the six is not square rooted)
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!

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Squaring both sides we get:

.

.

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Notice the left is a "difference of squares":

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Which can be factored as:

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Setting each term (on the left) to zero we get:
x = {-5,5}

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