4x^3 = 756

What recommendation can you make to Stephanie regarding her answer to the cubic equation above?

First you need to divide 4 on both sides to make the cube variable alone on the one side of the equation. then check whether the outcome of the 756/4 is the cube of any no. if not, then make pairs of it. 756/4 gives the answer 189 that's not the cube on any whole no. so i just made it's pairs i. e 3*3*3*7. now take the cube root on both sides of the equation

finally u'll get the answer something like x=3•square root of 7