Maths-
General
Easy

Question

Solve for y where x equals 3 left parenthesis cube root of 15 plus y end root right parenthesis

hintHint:

Rearrange the equation and then solve for y.

The correct answer is: not stretchy rightwards double arrow y equals x cubed over 27 minus 15


    Complete step by step solution:
    Here we have the equation x equals 3 left parenthesis cube root of 15 plus y end root right parenthesis
    On dividing both the sides by 3, we have x over 3 equals cube root of 15 plus y end root
    This can be rewritten as x over 3 equals left parenthesis 15 plus y right parenthesis to the power of 1 third end exponent
    To make the power of the equation as 1, we have to raise the equation by 3

    not stretchy rightwards double arrow open parentheses x over 3 close parentheses cubed equals 15 plus y

    not stretchy rightwards double arrow y equals x cubed over 27 minus 15

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