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20 and -20

Q: What is the real square roots of 400?

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20. * * * * * Sort of. ± 20 are the square roots (not rout!) of 400.

Nine :) * * * * * Sort of. ± 9 are the square roots (not rout!) of 400.

0.0625 has a grand total of 2 square roots, and they're both real. They are +0.25 and -0.25

300

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20. * * * * * Sort of. ± 20 are the square roots (not rout!) of 400.

20 and -20

20

20 is one of the two square roots of 400.

They are -20 and +20.

Nine :) * * * * * Sort of. ± 9 are the square roots (not rout!) of 400.

There are no real square roots of -256. But using complex numbers the square roots of -256 are 16i and -16i.

0.0625 has a grand total of 2 square roots, and they're both real. They are +0.25 and -0.25

300

-20 20

There are two roots, both real: -13 and +13