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09-10-2017
Mathematics

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S = 6ab + 4a^3
Make b the subject of the formula

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09-10-2017

Solve for b:S = 4 a^3 + 6 a b
S = 4 a^3 + 6 a b is equivalent to 4 a^3 + 6 a b = S:4 a^3 + 6 a b = S
Subtract 4 a^3 from both sides:6 a b = S - 4 a^3
Divide both sides by 6 a:Answer: b = S/(6 a) - (2 a^2)/3

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