Question 1158891
x+6/x^2+x-20
What value or values of x are not allowed in this rational expression?
(If you find two solutions, separate them with a comma.)
:
Denominator cannot = 0, therefore
x^2 + x - 20 = 0
Factors to
(x+5)(x-4) = 0
x = -5
x = 4

-5, 4 values are not allowed in this expression