Verified Answer :

AL2006


                                   4 x²  =  64

Divide each side by  4 :     x² = 16

Take the square root
of each side:                     x = √16

                                   x = + 4
and
                                   x = - 4 .

4x^2=64
divide both sides by 4
x^2=16
x= +4, -4

hope this helps

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