Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth. - 2y2 + 6y = - 2

Question

Mathematics

Gauge Robinson

16 September, 17:58

Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth. - 2y2 + 6y = - 2

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Patricky · Answer 1

-2y^2 + 6y + 2 = 0

a = - 2, b = 6, c = 2

x = ( - b + - sqrt (b^2-4ac)) / (2a)

x = (-6+-sqrt (36-4*-2*2)) / - 4

x = (-6+-sqrt (36+16)) / - 4

x = (-6+-sqrt (52)) / - 4

x = (-6 + - 2sqrt13) / - 4

x = (3 + - sqrt13) / 2