marull1744 marull1744

25-05-2022
Mathematics

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What are the solutions of the equation y = -2x square + 9x - 4

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alexanderorangeguy alexanderorangeguy

25-05-2022

Answer:

x = (-1±i√3)/2

Step-by-step explanation:

y = -2x² + 9x - 4

x = (-b±√(b²-4ac))/2a

x = (2±√((-2)²-4(-1)(-4))/2(-2)

x = (2±√(4-16))/-4

x = (2±√-12)/-4

√-12 = √12 x √-1

√12 = √4√3

2i√3

x = (-1±i√3)/2

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