-2x^2-3/10x

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Solution for -2x^2-3/10x equation: 


x in (-oo:+oo)

-2*x^2-((3/10)*x) = 0

(-3/10)*x-2*x^2 = 0

-2*x^2-3/10*x = 0

DELTA = (-3/10)^2-(-2*0*4)

DELTA = 9/100

DELTA > 0

x = ((9/100)^(1/2)+3/10)/(-2*2) or x = (3/10-(9/100)^(1/2))/(-2*2)

x = -3/20 or x = 0

x in { -3/20, 0 }

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