5x+9/4x2-4x-15

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Solution for 5x+9/4x2-4x-15 equation: 


x in (-oo:+oo)

(9/4)*x^2+5*x-(4*x)-15 = 0

(9/4)*x^2+5*x-4*x-15 = 0

9/4*x^2+x-15 = 0

DELTA = 1^2-(-15*9/4*4)

DELTA = 136

DELTA > 0

x = (136^(1/2)-1)/(2*9/4) or x = (-136^(1/2)-1)/(2*9/4)

x = 2/9*(2*34^(1/2)-1) or x = 2/9*(-2*34^(1/2)-1)

x in { 2/9*(-2*34^(1/2)-1), 2/9*(2*34^(1/2)-1) }

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