3 years ago

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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a) The value of the Annual Payment is A=$17,258.80

b) Is the picture in the attachment file

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