SOLUTION: (8+x)^-3=64

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Question 894415: (8+x)^-3=64
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39620)   (Show Source): You can put this solution on YOUR website!




, so a law of exponents can be used





Answer by MathTherapy(10553)   (Show Source): You can put this solution on YOUR website!

(8+x)^-3=64



------ Raising each side to the power


32 + 4x = 1 ------- Multiplying by LCD, 4
4x = 1 – 32

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