Multiply. Do not simplify.
-$$\frac { x - 4 } { 8 - x } \cdot \frac { - 1 } { - 1 }$$
A) $\frac { ( x - 4 ) ( - 1 ) } { 8 - x }$
B) $\frac { x - 4 } { ( 8 - x ) ( - 1 ) }$
C) $\frac { ( 8 - x ) ( - 1 ) } { ( x - 4 ) ( - 1 ) }$
D) $\frac { ( x - 4 ) ( - 1 ) } { ( 8 - x ) ( - 1 ) }$

Question

Quizplus · Accepted Answer

When multiplying fractions, we multiply the numerators and denominators separately. Multiplying by $\frac{-1}{-1}$ is the same as multiplying by $1$, so we can rewrite the expression as:
$$\frac{x-4}{8-x} \cdot 1 = \frac{(x-4)(-1)}{(8-x)(-1)} = \frac{(x-4)(-1)}{(x-8)} = \frac{-(x-4)}{x-8} = \boxed{\frac{4-x}{x-8}}$$
Therefore, the answer is $\boxed{\textbf{(D)}}$.

Multiply Do Not Simplify x−48−x⋅−1−1\frac { x - 4 } { 8 - x } \cdot \frac { - 1 } { - 1 }8−xx−4​⋅−1−1​

Multiply Do Not Simplify $\frac { x - 4 } { 8 - x } \cdot \frac { - 1 } { - 1 }$