Question

Fifteen times the square of a non-zero number is equal to 15 times the number

Answer 1

if were translating it the the answer is 15*x^2 = 15x but if were not then i don't know what to do here. Hope this helps!

Answer 2

15·x²=15·x so
x²=x
x·x=x with x≠0 than x must be 1
x=1