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7x^2-10=-17 solve by taking square root
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4 votes
7x^2-10=-17 solve by taking square root

User Ppcano
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1 Answer

7 votes

Explanation:


7x^2-10=-17\\7x^2=-7\\x^2=-1\\x=√(-1)\\x=√(i^2)\\\boxed{x=i,-i}

User Raj Sf
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