7x+1/5=-x^2

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Solution for 7x+1/5=-x^2 equation: 


x in (-oo:+oo)

7*x+1/5 = (-x)^2 // - (-x)^2

7*x-(-x)^2+1/5 = 0

7*x-x^2+1/5 = 0

7*x-x^2+1/5 = 0

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

DELTA = 249/5

DELTA > 0

x = ((249/5)^(1/2)-7)/(-1*2) or x = (-(249/5)^(1/2)-7)/(-1*2)

x = ((249/5)^(1/2)-7)/(-2) or x = ((249/5)^(1/2)+7)/2

x in { ((249/5)^(1/2)-7)/(-2), ((249/5)^(1/2)+7)/2 }

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