Answer:
The answer is D.
Step-by-step explanation:
3x*3x = 9x^2
3x*2= 6x
5*3x=15x
5*2=10
6x+15x=21x
9x^2+21x+10
The answer is -4.
Because the 4 x 4 is 16
48
You multiply by 2 each time
