The answer to this problem is 555.4
If your asking if it’s right I believe so
Answer:
x^2 +8x
Step-by-step explanation:
2x+x(x+6)
Distribute
2x + x^2 +6x
Combine like terms
x^2 +8x
7×3=21 so he has 7 more lawns or 2 1/3 months
Sorry if it's wrong, I tried