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# Help!!!

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91
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x2 = 84

x = ?

Jun 20, 2022

#1
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$$x=\sqrt{84}$$
$$\text{which also equals }$$

$$x=2\sqrt{21}$$

.
Jun 20, 2022
#2
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You are missing the case where $$x=-\sqrt{84}$$, so the answer would actually be $$\boxed{x=\pm2\sqrt{21}}$$.

RainbowSquirrel53  Jun 20, 2022