3 years ago

If anybody can answer this quickly; please do!

1 answer:

3 0

Answer:

The answer is D

Step-by-step explanation:

I would give an explanation but it would take to long. The original answer is 21, there is no other equation that equals 21.

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andrew-mc [135]

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3 years ago

Pie

$x^2-4=20\qquad|+4\\\\x^2=24\to x=\pm\sqrt{24}\\\\x=-\sqrt{4\cdot6}\ \vee\ x=\sqrt{4\cdot6}\\\\x=-2\sqrt6\ \vee\ x=2\sqrt6$

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Anna [14]

Answer

z= 14

Step-by-step explanation:

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Step-by-step explanation:

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