(42x^2-478x-2462)/77445=0

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Solution for (42x^2-478x-2462)/77445=0 equation: 


x in (-oo:+oo)

(42*x^2-(478*x)-2462)/77445 = 0

(42*x^2-478*x-2462)/77445 = 0

42*x^2-478*x-2462 = 0

2*(21*x^2-239*x-1231) = 0

21*x^2-239*x-1231 = 0

DELTA = (-239)^2-(-1231*4*21)

DELTA = 160525

DELTA > 0

x = (160525^(1/2)+239)/(2*21) or x = (239-160525^(1/2))/(2*21)

x = (5*6421^(1/2)+239)/42 or x = (239-5*6421^(1/2))/42

2*(x-((239-5*6421^(1/2))/42))*(x-((5*6421^(1/2)+239)/42)) = 0

(2*(x-((239-5*6421^(1/2))/42))*(x-((5*6421^(1/2)+239)/42)))/77445 = 0

( x-((239-5*6421^(1/2))/42) )

x-((239-5*6421^(1/2))/42) = 0 // + (239-5*6421^(1/2))/42

x = (239-5*6421^(1/2))/42

( x-((5*6421^(1/2)+239)/42) )

x-((5*6421^(1/2)+239)/42) = 0 // + (5*6421^(1/2)+239)/42

x = (5*6421^(1/2)+239)/42

x in { (239-5*6421^(1/2))/42, (5*6421^(1/2)+239)/42 }

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