Evaluating Polynomials?

11. Identify the polynomial as a monomial, binomial, trinomial, or none of these. Give its degree.-12c4 - 7c3 + 6c2
A Binomial, degree 3
B Trinomial, degree 4
C Binomial, degree 9
D Trinomial, degree 9

12. Divide (-6x7+16x5) / (-2x3)
A 3x4 - 8x2
B -5x9
C -6x7 - 8x2
D 3x4 + 16x5

13. Multiply.(x - 8)(x + 8)
A x2 - 16
B x2 - 16x - 64
C x2 + 16x - 64
D x2 - 64

14. -7x5(11x - 12)
A 7x5
B -77x6 + 84x5
C -77x + 84
D -77x6 - 12

15. Multiply.3(3x)
A 6x
B 9x
C 9
D 6

16. Subtract.(3a + 3b - c) - (-3b + 3c + 3d)
A 3a + 6b + 4c + 3d
B 3a + 6b - 2c - 3d
C 3a + 6b - 4c + 3d
D 3a + 6b - 4c - 3d

17. Simplify (a3/b4)4
A a12/16
B a4/b16
C a16/b12
D a12/b4

18. Collect like terms.z3 - 3z4 + 12z2 + z4 - 10z3
A 2z4 + 9z3 - 12z2
B -3z4 + 9z3 + 12z2
C -2z4 - 9z3 + 12z2
D -2z8 - 9z6 + 12z2

19. Find the total area of all shaded rectangles. Picture shown
A 6x2 + 48x + 16
B 36x2 + 48x + 16
C 36x2 + 24x + 16
D 6x2 + 24x + 16

20. m2 when m = 18
A 20
B 36
C 648
D 324