SOLUTION: solve for x: 5x^2 + 10x + 5 = 7

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Question 384599: solve for x: 5x^2 + 10x + 5 = 7
Answer by mananth(16946) About Me  (Show Source):
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5x^2 + 10x + 5 = 7
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5x^2+10x-2
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solve using quadratic formula
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a=5,b=10,c=-2
b%5E2-4ac=140
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x1=%28%28-10%2Bsqrt%28140%29%29%29%2F%2810%29
x1=0.183
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x2=%28%28-10-sqrt%28140%29%29%29%2F%2810%29
x2=-2.183
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