(16x^2-56x+40)/8

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Solution for (16x^2-56x+40)/8 equation: 


x in (-oo:+oo)

(16*x^2-(56*x)+40)/8 = 0

(16*x^2-56*x+40)/8 = 0

16*x^2-56*x+40 = 0

8*(2*x^2-7*x+5) = 0

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

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

DELTA = 9

DELTA > 0

x = (9^(1/2)+7)/(2*2) or x = (7-9^(1/2))/(2*2)

x = 5/2 or x = 1

8*(x-1)*(x-5/2) = 0

(x-1)*(x-5/2) = 0

( x-1 )

x-1 = 0 // + 1

x = 1

( x-5/2 )

x-5/2 = 0 // + 5/2

x = 5/2

x in { 1, 5/2 }

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