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levacccp [35]
3 years ago
12

Apply the square root principle to solve (x – 2)2 + 20 = 0.

Mathematics
1 answer:
Temka [501]3 years ago
7 0

(x-2)^2+20=0

(x-2)^2=-20

If you root both sides you will yield complex numbers (i, imaginary unit is such that i^2=-1),

x-2=20i

x=2+20i

and whenever x is a solution a complex conjugate x* is also a solution,

x*=2-20i

So the answer is A.

Hope this helps :)

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