Question

Twenty times the square of a non zero number is equal to 20 times the number.

Answer 1

Answer: The only possible number is +1

Step-by-step explanation:

Let the number be x then according to the question

$20\times x^{2}=20\times x$

=>$20x(x-1)=0$

=>$x=0,1$

But x=0 is not possible therefore

=>$x=+1$

Thus the only possible number is +1

Answer 2

The answer is 1.
1² = 1
20×1² = 20×1