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What is the value of x, when x^2 + 5 = 21? A 5.5 or -5.5 B 4 or -4 C 2 or -2 D 8 or -8

What is the value of x, when x^2 + 5 = 21? A 5.5 or -5.5 B 4 or -4 C 2 or -2 D 8 or -8
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5 votes
What is the value of x, when x^2 + 5 = 21?

A
5.5 or -5.5
B
4 or -4
C
2 or -2
D
8 or -8

asked
User Pradnya Bolli
by
7.8k points

1 Answer

0 votes
The answer is B. 4 or -4
answered
User Sam Soffes
by
7.9k points
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