Answer:
I think the answer is 80?
Step-by-step explanation:
Answer:

Step-by-step explanation:

Collect like terms
⇒
⇒
⇒
Calculate
⇒
⇒
Hope I helped!
Best regards! :D
If you estimate, its around 5
Answer:
6x^2+5x+4
Step-by-step explanation:
hope this helps
+1,-1 and your other would be 1,1