1/2x^2-11/4x-21/4

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Solution for 1/2x^2-11/4x-21/4 equation: 


x in (-oo:+oo)

(1/2)*x^2-((11/4)*x)-(21/4) = 0

(1/2)*x^2+(-11/4)*x-21/4 = 0

1/2*x^2-11/4*x-21/4 = 0

DELTA = (-11/4)^2-(-21/4*1/2*4)

DELTA = 289/16

DELTA > 0

x = ((289/16)^(1/2)+11/4)/(1/2*2) or x = (11/4-(289/16)^(1/2))/(1/2*2)

x = 7 or x = -3/2

x in { -3/2, 7 }

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