7x/5x+15*x+3/8

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Solution for 7x/5x+15*x+3/8 equation: 


x in (-oo:+oo)

((7*x)/5)*x+15*x+3/8 = 0

7/5*x^2+15*x+3/8 = 0

DELTA = 15^2-(3/8*7/5*4)

DELTA = 2229/10

DELTA > 0

x = ((2229/10)^(1/2)-15)/(7/5*2) or x = (-(2229/10)^(1/2)-15)/(7/5*2)

x = 5/14*((2229/10)^(1/2)-15) or x = -5/14*((2229/10)^(1/2)+15)

x in { -5/14*((2229/10)^(1/2)+15), 5/14*((2229/10)^(1/2)-15) }

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