20
20 is one of the two square roots of 400.
Prime numbers can't have whole number square roots, of course, but the largest prime number under 400 is 397.
-15 15
A number multiplied by itself is the square of that number. The reverse procedure is the square root. You can get help for square roots from you teacher, a tutor, a student who understands square roots, etc.
square inches do not have square roots only number have square roots.
The two square roots of 400 are: 20 and -20.
20. * * * * * Sort of. ± 20 are the square roots (not rout!) of 400.
20 and -20
20 is one of the two square roots of 400.
Prime numbers can't have whole number square roots, of course, but the largest prime number under 400 is 397.
-15 15
They are -20 and +20.
Nine :) * * * * * Sort of. ± 9 are the square roots (not rout!) of 400.
A number multiplied by itself is the square of that number. The reverse procedure is the square root. You can get help for square roots from you teacher, a tutor, a student who understands square roots, etc.
300
-20 20
square inches do not have square roots only number have square roots.