High School

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Solve the equation. If necessary, round your answer to the nearest tenth.

\[ x^2 = 256 \]

A. 128
B. 16
C. 16, –16
D. 128, –128

Answer :

there was to solutions
x=16
x=-16

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Rewritten by : Barada

Answer:

16, -16

Step-by-step explanation:

x^2 = 256

x = [tex]\sqrt{256}[/tex]

x = [tex]\sqrt{4 * 64}[/tex]

x = [tex]\sqrt{4}[/tex] * [tex]\sqrt{64}[/tex]

x = 2 * 8

x = 16

Hopes this helps >.<