Question

Simplify the rational expression. State any excluded values.

x-2 / x^2 + 3x - 10

a. x2
b. x + 5
c. 1/x2
d. 1/x + 5

Answer 1

a good first step would be to factor the denominator

Answer 2

as for excluded values, just set x^2 + 3x - 10 = 0 and solve for x

Answer 3

So it would be C?

Answer 4

D actually

Answer 5

the denominator factors to (x-2)(x+5) and the (x-2) on the top and bottom cancel out leaving 1/(x+5)

Answer 6

thank you

Answer 7

:)