For #s 10 and 11, use the following synthetic division:
3 | 1 -6 2 21
3 -9 -21
__________
1 -3 -7 0
10) Which polynomial is the dividend?
11) which polynomial is the quotient?
12) Find the quotient when(×3 + 2×2 -19×-20) is divided by (2×+1)?
14) What will be multiplied to ×2-6×2 to get 3×3-17×2+2?
15) The volume of a rectangular prism is (2×3+11×2+11×-4)cm3 and its height is (×+4)cm. What is the area of its base?​