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Find all real numbers a that satisfy 1/(a^3 + 7) - 7 = -a^3/(a^3 + 7) + 6.

 Jan 26, 2022
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a^3 = x

1/(x+7) - 7 =- x/(x+7) + 6

(1 + x)/(x + 7) = 13

1 + x = 13x + 91

-90 = 12x

x = -15/2

 

=^._.^=

 Jan 26, 2022

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