(5x^2+16x-45)/(x+5)

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Solution for (5x^2+16x-45)/(x+5) equation: 


D( x )

x+5 = 0

x+5 = 0

x+5 = 0

x+5 = 0 // - 5

x = -5

x in (-oo:-5) U (-5:+oo)

(5*x^2+16*x-45)/(x+5) = 0

5*x^2+16*x-45 = 0

5*x^2+16*x-45 = 0

DELTA = 16^2-(-45*4*5)

DELTA = 1156

DELTA > 0

x = (1156^(1/2)-16)/(2*5) or x = (-1156^(1/2)-16)/(2*5)

x = 9/5 or x = -5

(x+5)*(x-9/5) = 0

x-9/5 = 0

x-9/5 = 0 // + 9/5

x = 9/5

x = 9/5

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