Question

Which value of x makes the quotient of (5x^5+90x^2-135x)/(x+10) undefined?

Answer 1

The quotient will be undefined when the denominator is zero, since division by zero is undefined. The denominator is x+10. We can find the answer by setting this equal to zero and solving for x:


`x+10=0`

`x+10-10=0-10`

`x=-10`

The answer is D.

Answer 2

In order for a fraction to be undefined, the denominator or number on the bottom must be equal to zero. So we set the bottom binomial equal to zero.

x + 10 = 0
x = 0 - 10
x = - 10

Option D is your answer.