5-9x-2x^2/1+x^2

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Solution for 5-9x-2x^2/1+x^2 equation: 


x in (-oo:+oo)

x^2-((2*x^2)/1)-(9*x)+5 = 0

x^2-2*x^2-9*x+5 = 0

5-x^2-9*x = 0

DELTA = (-9)^2-(-1*4*5)

DELTA = 101

DELTA > 0

x = (101^(1/2)+9)/(-1*2) or x = (9-101^(1/2))/(-1*2)

x = (101^(1/2)+9)/(-2) or x = (9-101^(1/2))/(-2)

x in { (101^(1/2)+9)/(-2), (9-101^(1/2))/(-2) }

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