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Aleks04 [339]
3 years ago
9

WILL GET BRAILIEST FOR CORRECT ANSWER

Mathematics
1 answer:
Alex Ar [27]3 years ago
5 0

Answer:

x = ± \sqrt{20}

Step-by-step explanation:

Given

x² = 20 ( take the square root of both sides )

x = ± \sqrt{20}

which can be simplified to

x = ± 2\sqrt{5}

[ ± means plus or minus ]

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If f(x) = 3x² tlo, what is f(-7)?
tia_tia [17]

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Be careful how you handle this.

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