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Solve x2 +7=71 giving the positive and negative solutions.
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Solve x2 +7=71
giving the positive and negative solutions.

User Alex Fortuna
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1 Answer

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x^(2) +7=71 \iff x^(2) =71-7


x^(2) = 64 \iff x^(2) = 8^(2)


x_(1) = - 8, \ x_(2) = 8

User GregPK
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