x^2-7/4x-15/4

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Solution for x^2-7/4x-15/4 equation: 


x in (-oo:+oo)

x^2-((7/4)*x)-(15/4) = 0

x^2+(-7/4)*x-15/4 = 0

x^2-7/4*x-15/4 = 0

DELTA = (-7/4)^2-(-15/4*1*4)

DELTA = 289/16

DELTA > 0

x = ((289/16)^(1/2)+7/4)/(1*2) or x = (7/4-(289/16)^(1/2))/(1*2)

x = 3 or x = -5/4

x in { -5/4, 3 }

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