Question

For which value of x will the rational expression below be undefined? Check all that apply. (x-5)(x+2)/x+1 A. -5 B. -1 C. 1 D. 5 E. -2 F. 2

Answer 1

Answer :-

`\sf \: ((x - 5)(x + 2))/(x + 1)`

Now,

Taking denominator as 0

x + 1 = 0

x = 0 - 1

x = -1

Answer 2

• B. -1

Explanation:

Given expression:

• (x-5)(x+2)/(x+1)

This is undefined when the denominator is zero:

• x + 1 = 0
• x = -1

Correct choice is B