Simplify the rational expression. State any excluded values.
(3x-12)/x-4
1. x
2. 3;where x is not equal to 4
3. 3;where x is not equal to 3
4. 0
I know its 3 but not sure about excluded value? Thanks! Will medal and fan :)

Question

Simplify the rational expression. State any excluded values.
(3x-12)/x-4
1. x
2. 3;where x is not equal to 4
3. 3;where x is not equal to 3
4. 0
I know its 3 but not sure about excluded value? Thanks! Will medal and fan :)

jhonyy9 · Answer

(3x-12)       3(x-4)
-------- = ------- = ?
  x-4            x-4

excluded value mean the restriction of x for what value of x the denominator will be equal zero and hence the fraction will be undefined 

do you know it for what value of x will result the denominator equal zero ?