Answer:
2 ( 4x² + 3xy - 2 )
Step-by-step explanation:
( 5x² + 4xy - 7 ) + ( 3x² + 2xy + 3 )
5x² + 4xy - 7 + 3x² + 2xy + 3
Combine like terms.
5x² + 3x² + 4xy + 2xy - 7 + 3
8x² + 6xy - 4
Factorize the answer.
2 ( 4x² + 3xy - 2 )
Answer:
d. 24
Step-by-step explanation:
Answer:
140 mile
Step-by-step explanation:

While x is the speed of the second train.
The answer is 1 1/5
Hope this helps