Question

For which values of x is the expression undefined?

X – 9
——————
X^2+9x + 18

Answer 1

Answer:

-3, -6

Step-by-step explanation:

Any number of x that makes the bottom 0 makes the expression undefined.

Factor the polynomial in the denominator:

(x+3)(x+6)

Values of x that makes the expression undefined are -3 and -6

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