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Find all real numbers a that satisfy
1/(a^3 + 7) = -a^3/(a^3 + 7)

 Nov 17, 2022
 #1
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\({1\over a^3+7} = {-a^3\over a^3+7}\)

Multiply both sides by a^3 + 7

1 = -a^3

-1 = a^3

a = -1

 Nov 18, 2022

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