Answer:
1.5241579e+16 is the answer
A) 4a+3w
b) 2b+h
c) 3(w+h)
d) (4a+3w)(2b+h) - 3(w+h)
just expand brackets for d and simplify
Step-by-step explanation:

-7x^2 - 6x^2 + 3x + 5x - 5 + 2
-13x^2 + 8x - 3
Subtract 7 both sides
Subtract 9x both side
They cancel out
At the end you divide it
I don’t have access to paper right now sorry