(X^2-3x-4)/(5x^2-80)

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Solution for (X^2-3x-4)/(5x^2-80) equation: 


D( x )

5*x^2-80 = 0

5*x^2-80 = 0

5*x^2-80 = 0

5*x^2 = 80 // : 5

x^2 = 16

x^2 = 16 // ^ 1/2

abs(x) = 4

x = 4 or x = -4

x in (-oo:-4) U (-4:4) U (4:+oo)

(X^2-(3*x)-4)/(5*x^2-80) = 0

(X^2-3*x-4)/(5*x^2-80) = 0

X^2-3*x-4 = 0 // - X^2-4

-3*x = -(X^2-4) // : -3

x = (-(X^2-4))/(-3)

x = (4-X^2)/(-3)

x = (4-X^2)/(-3)

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