Abigail11111 Abigail11111

12-04-2017
Mathematics

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The roots of the equation 2x^2+8x-7=-2 are?

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Аноним Аноним

15-04-2017

2x^2+8x-7=-2
2x^2+8x - 5 = 0

using the formula:- x = [-8 +/- sqrt(8^2 - 4*2*-5) ] / 4
= -2 +/- sqrt 104)/2
= 0.5495 , -4.549

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