Which represents all the values of x that make the rational expression undefined? x = –3 x = 7 x = –7 or x = 7 x = –3 or x = 3

Question

asked Mar 25, 2020 158k views

2 Answers

Pufferfish · Answer 1 · 2020-03-30T01:29:19+0000

Answer:

The value of x would be -3.

Explanation:

Consider the complete question is,

'Which represents all the values of x that make the rational expression
(-6x + 42)/(3x + 9) undefined?'

Since, the rational expression is defined for all real values except those for which denominator is equal to zero,

If 3x + 9 = 0,

3x = -9

$\implies x =-(9)/(3)=-3$

Hence the values of x that make the rational expression undefined would be -3.