Question

For what values of x is the rational expression below undefined?

x-7/ 2x^2 -32
Check all that apply.
A. 7
B. 4
C. 2
D. -2
E. -4
F. -7

Answer 1

Answer: definitely 4 and -4, just took the quiz!

Explanation:

Answer 2

The value of x that will result for the rational expression to be undefined will be the values that will give 0 value for the denominator.

A. 7
2(7)^2 -32 = 66

B. 4
2(4)^2 -32 = 0 -------> undefined

C. 2
2(2)^2 -32 = -24

D. -2
2(-2)^2 -32 = -24

E. -4
2(-4)^2 -32 = 0 -------> undefined

F. -7
2(-7)^2 -32 = 66