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Answered

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If x = 4, what is the value of 2x2 - 7?
A.
25
B.
46
C.
39
D.
59

Sagot :

Answer:

A) 25

Step-by-step explanation:

I am assuming that you mean: 2x² - 7.

[tex]2(4)^2 - 7\\\rule{150}{0.5}\\\rightarrow 2 *4^2 - 7\\\\\rightarrow 2 * 16 - 7\\\\\rightarrow 32 -7\\\\\rightarrow \boxed{25}[/tex]
A because it doesn’t make sense if you say 2x2 -7 so it is probably 2x by the power of 2
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