The square of a whole number is 2809 what is the number
x= is the number; then we have the next equation:
x²=2809
x=⁺₋√2809=⁺₋53
We have two solutions: the number can be -53 and 53.
Answer: the number can be -53 and the number can be 53 too.
We check it out.
(-53)²=2809
53²=2809