Question

Solve xto the 2nd power= 121.
A. 60.5
B.-11
C.11
D.+11
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Answer 1

the answer is D

Explanation:

i hope this helps

Answer 2

x = -11 and x = 11

Explanation:

`x^2=121\to x=\pm√(121)\\\\x=\pm11\qquad\text{because}\ 11^2=(-11)^2=121\\\\==================\\\\√(a)=b\iff b^2=a`