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Earn +20 ptsQ: What is 21 squared?
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How do you simplify 5 root 21 squared?
5*root(21^2) = 5*21 = 105
Which Two square numbers total 85?
Well, butter my biscuit! The two square numbers that add up to 85 are 64 and 21. 64 is 8 squared, and 21 is 4 squared. So, there you have it, darlin' - 8 squared plus 4 squared equals 85.
What is 3 Times Square root of 7 squared?
21.
Is 444 a square number?
No, 441 is though (it is 21 squared)
Z squared equals 4z plus 21?
(z=-3) and (z=7)
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