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Find x when X to the power of -5 thirds equals 4 without using a calculator?
Yosef300
x^(-5/3) = 4
1/x^(5/3) = 4
x^(5/3) = 1/4
[x^(5/3)]^(3/5) = (1/4)^(3/5)
x = 1/4^(3/5) or,
x = 4^(-3/5)
Check:
x^(-5/3) = 4
[4^(-3/5)]^(-5/3) = 4 ?
4 ^(15/15) = 4 ?
4^1 = 4 ?
4 = 4
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∙ 15y ago
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