5/4=7x^2-x

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Solution for 5/4=7x^2-x equation: 


x in (-oo:+oo)

5/4 = 7*x^2-x // - 7*x^2-x

x-(7*x^2)+5/4 = 0

x-7*x^2+5/4 = 0

x-7*x^2+5/4 = 0

DELTA = 1^2-(-7*5/4*4)

DELTA = 36

DELTA > 0

x = (36^(1/2)-1)/(-7*2) or x = (-36^(1/2)-1)/(-7*2)

x = -5/14 or x = 1/2

x in { -5/14, 1/2 }

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