What values of the variable must be excluded from the expression x^3-x^2/x^2+4x-5

Answer 1

If this is your problem

You have the fraction below

(x³ - x²)/(x² + 4x - 5)

Factor the numerator and denominator

x²(x - 1)/(x + 5)(x - 1)

The quantity (x - 1) is common to the numerator and denominator and cancels out

x²/(x + 5)

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