What is the square root of 12 the power of 2 + 5 the power of 2?

1 Answer
Sep 20, 2015

Answer:

37

Explanation:

I'm assuming you meant
#(sqrt12)^2 + 5^2#

Well then, that's easy.
The square of a square-root is what's inside the root.
You'll have to remember the rule:
#(sqrt(a))^2=a# (where #a >= 0#, i.e. only positive numbers)
(Note: this is different from the square-root of a square
i.e. #sqrt(a^2) = abs(a)# where #abs(a)# is the absolute value of a, for all a, not only positive numbers.)

So, we have:
#12+5*5=12+25=37#