Question

Four times the square of a non-zero number is equal to eight times the number. What is the number?

Answer 1

`2`

Explanation:

Let `x` be the number,
`=> 4x^2=8x`
`=> 4x^2-8x=0`
`=> 4x(x-2)=0`
`=> x=0 or 2`

Given that `x` is a non-zero number,
`=> x=2`