Part A
Let u = x² + 3.  Which equation is equivalent to
(x² + 3)² + 21 = 10x² + 30 in terms of u?
A.)  u² + 10u + 51 = 0
B.)  u² - 10u + 51 = 0
C.)  u² + 10u + 21 = 0
D.)  u² - 10u + 21 = 0

Part B
What are the solutions of the equation
(x² + 3)² + 21 = 10x² + 30?  Select all that apply.
A.)  -4            E.)  2
B.)  -3            F.)  3
C.)  -2            G.)  4
D.)  0

The figure shows a graph of the function of f(x) in the xy-coordinate plane, with vertex at (1,9) and the zeros at -2 and 4.


The function g is defined by g(x) = -3x + 2.
Which statements are true?  Select all that apply.
A.)  f(-2) is greater than g(-2)
B.)  f(-1) is less than g(-1)
C.)  f(0) is greater than g(0)
D.)  f(1) is less than g(1)
E.)  f(2) is greater than g(2)

A.)  

C.)

B.)

D.)