(3/7)x^2+2.5x+6.25x

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Solution for (3/7)x^2+2.5x+6.25x equation: 


x in (-oo:+oo)

(3/7)*x^2+2.5*x+6.25*x = 0

3/7*x^2+8.75*x = 0

DELTA = 8.75^2-(0*3/7*4)

DELTA = 8.75^2

DELTA = 76.5625

DELTA > 0

x = ((8.75^2)^(1/2)-8.75)/(3/7*2) or x = (-(8.75^2)^(1/2)-8.75)/(3/7*2)

x = 0 or x = -20.4166666

x in { -20.4166666, 0 }

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