Question

What is √252 in simplified radical form?

A. 21√12


B. 12√21


C. 7√6

D. 6√7

I think it's D.

Answer 1

You are correct! The answer is D. Let me type out the reason of why~

Answer 2

Factor 252 into 36*7
Break up the square roots using the identity \[\sqrt{x*y}=\sqrt{x}*\sqrt{y}\]
Take the square root of the perfect square 36 to get 6
And you get
\[6\sqrt{7}\]

~Luckyness

Answer 3

Thank you. c: