Question

If 2 times the square of a number is equal to the 6 times the number,find the number

Answer 1

2x^2 = 6x
2x^2 - 6x = 0
2x(x - 3) = 0
x = 0 or x = 3

check:
if x = 3
2(3)^2 = 18
6(3) = 18 , YUP!

if x = 0
2(0) = 0
6(0) = 0 , YUP!