Find all values that make the rational expression undefined. If the rational expression is defined for all real numbers, so
state.
-$$\frac { x ^ { 2 } - 64 } { x ^ { 2 } + 17 x + 70 }$$
A) $x = 8 , x = - 8$
B) $x = 7 , x = - 10$
C) $x = - 7 , x = - 10$
D) $x = 0$

Question

Quizplus · Accepted Answer

A rational expression is undefined when its denominator is equal to zero. The denominator of the given expression is $x^2 + 17x + 70$. Factoring the denominator gives $(x + 7)(x + 10) = 0$, so the expression is undefined for $x = -7$ and $x = -10$.

Find All Values That Make the Rational Expression Undefined x2−64x2+17x+70\frac { x ^ { 2 } - 64 } { x ^ { 2 } + 17 x + 70 }x2+17x+70x2−64​

Find All Values That Make the Rational Expression Undefined $\frac { x ^ { 2 } - 64 } { x ^ { 2 } + 17 x + 70 }$