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Luba_88 [7]
3 years ago
13

Given that f(x)= 9x^2-180, find x

Mathematics
1 answer:
hoa [83]3 years ago
3 0
9x^{2}  - 180 = 0

9x^{2}  = 180

Divide both sides by 9

 x^{2} = 20

Square root both sides, and you get

x =  \sqrt{20} --\ \textgreater \  simplified: 2 \sqrt{5}
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