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Solve the quadratic equation by the square root property (2x+5)^2=49 I'm in Pre-calculus and im not sure how to work a problem like this
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Solve the quadratic equation by the square root property (2x+5)^2=49 I'm in Pre-calculus and im not sure how to work a problem like this
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Aug 8, 2017
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Solve the quadratic equation by the square root property (2x+5)^2=49
I'm in Pre-calculus and im not sure how to work a problem like this
Mathematics
high-school
Yonatan Maman
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Yonatan Maman
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take the square root of both sides
remember to take the positive and negative root
2x+5=-7 or
2x+5=7
solve each
2x+5=-7
subtract 5
2x=-12
divide 2
x=-6
2x+5=7
subtract 5
2x=2
divid 2
x=1
x=-6 or 1
Tirdad Abbasi
answered
Aug 13, 2017
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Tirdad Abbasi
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