The working is not supposed to be done separatey.It is supposed to be done in 1 step.The sign of the cube root is also missing.
It is a square root, not a cube root. and therefore we cannot cancel out the power of 3 of each number. And son we cannot cancel the power of 3.
^3 can not be covered by square roots as square roots cancels out ^2, but not ^3.
Square root divides the power by 2. Not 3. IT'S A SQUUUAAARE. Not a cube root then the power is divided by 3.
the ^3 cannot be cancelled away as it is square rooted, not cube rooted.
it is a square root, not a cube root, so the ^3s cannot be cancelled away.