Answer:
-(4b^2-17ab+12)
Step-by-step explanation:
9ab+3b^2-7b^2+8ab-12
9ab+8ab+3b^2-7b^2-12
17ab-4b^2-12
a+8/3=2/3
a=2/3-8/3
a=2-8/3
a=-6/3
a=-2
3(4.5) Because they equal the same thing
4.5(+3)=13.5
3(4.5)=13.5
hope you like my answer its-11
