Question

Which of the following is √441 simplified?


a.21


b.23


c.20


d.18

Answer 1

Answer:

21

Step-by-step explanation:

Put √441 in your calculator to get 21.

Answer 2

First you had to simplified by square root of four-hundred-forty-four. You can also used their factor by the numbers.

$441=21^2=21*21=441$

$\sqrt{21^2}$

Then you can used their apply radical rule.

$\sqrt{21^2}=21$

$21^2=21*21=441$

Final answer: $\boxed{=21 or A.}$

Hope this helps!

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-Charlie