Answer:
8x² + 6xy - 4
Step-by-step explanation:
(5x² + 4xy - 7) + (3x² + 2xy + 3) ← remove parenthesis
= 5x² + 4xy - 7 + 3x² + 2xy + 3 ← collect like terms
= 8x² + 6xy - 4
5t=3b+660....and....2t+5B=450
from the first we can see that the t=(3b+650)/5 and using this value in the second.
(6+1320)/5+5b=450 making all have common denominator.
6b+1320+25b=2250
31b=930
b=30.. and 2t+5b=450
t=150
Could you post a picture? I’m not sure o understand
Can you show the choices you have
