Which Are The Solutions Of X2 = –5X + 8?

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Question

Which are the solutions of x2 = –5x + 8?

Answer

Rewrite the equation set = to 0.x^2 + 5x – 8 = 0The quadratic will not factor so you have to use the quadratic formula.x = (-b + – sqrt(b^2 – 4ac))/2ax = (5 + – sqrt(25 – 4* 1* -8))/2x = (5 + – sqrt 57)/2

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