Answer: x=0 ; x=-6
The result of the equation would be undefined if the denominator is zero. In this question, the denominator is(4x^4+24x^3). You need to simplify the equation to find the number.
(3x^2+18) / (4x^4+24x^3)
3(x^2+6) / 4x^3(x+6)
You can find 2 results of variable x that will result in zero value of denominator.1. 4x^3=0
x=0
2. x+6=0
x=-6