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18-01-2019
Mathematics

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Ammimochi Ammimochi

18-01-2019

Add 8 to both sides

y + 8 = -3(x + 7)^2

Divide both sides by -3

-y + 8/3 = (x - 7)^2

Take the square root of both sides

√-y + 8/3 = x - 7

Simplify

√y + 8/3 = x - 7

Regroup terms

√y + 8/3 = x - 7

Collect solutions

Answer: C. x = 7

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