Simplify.
-$$\frac { \frac { 7 } { x + 3 } + \frac { 14 } { x + 7 } } { \frac { 3 x + 13 } { x ^ { 2 } + 10 x + 21 } }$$
A) $\frac { 1 } { 7 }$
B) $3 x + 13$
C) 21
D) 7

Name: Simplify. -\[\frac { \frac { 7 } { x + 3 } + \frac { 14 } { x + 7 } } { \frac { 3 x + 13 } { x ^ { 2 } + 10 x + 21 } }\] A) $\frac { 1 } { 7 }$ B) $3 x + 13$ C) 21 D) 7
Brand: Quizplus
Rating: 4.9 (38 reviews)

Question

Quizplus · Accepted Answer

The expression simplifies to 7 by combining the fractions in the numerator and recognizing that the denominator is a factor of the numerator's common denominator.

Simplify - 7x+3+14x+73x+13x2+10x+21\frac { \frac { 7 } { x + 3 } + \frac { 14 } { x + 7 } } { \frac { 3 x + 13 } { x ^ { 2 } + 10 x + 21 } }x2+10x+213x+13​x+37​+x+714​​

Simplify
- $\frac { \frac { 7 } { x + 3 } + \frac { 14 } { x + 7 } } { \frac { 3 x + 13 } { x ^ { 2 } + 10 x + 21 } }$