x2-36/42x-7x2

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Solution for x2-36/42x-7x2 equation:


x in (-oo:+oo)

x^2-(7*x^2)-((36/42)*x) = 0

x^2-7*x^2+(-6/7)*x = 0

-6*x^2-6/7*x = 0

DELTA = (-6/7)^2-(-6*0*4)

DELTA = 36/49

DELTA > 0

x = ((36/49)^(1/2)+6/7)/(-6*2) or x = (6/7-(36/49)^(1/2))/(-6*2)

x = -1/7 or x = 0

x in { -1/7, 0 }

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