Question 246735
twenty times the square of a non zero number is equal to 15 times the number


Let x be the unknown number.

Then we have:

20*x^2 = 15x

Rewrite this as:

20x^2 - 15x = 0

Factor out 5x:

5x(4x - 3) = 0

The two solutions are x = 0 and 4x - 3 = 0

We are told that the answer is non-zero so we need only to solve 4x-3 = 0 for x.