Solve.
= -21
A. x = 84
B. x = 25
C. x = -84
D. x = -63
Answer: C
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Graph the polynomial function. f(x) = x3 - 2x2 - 5x + 6
A. 
B. 
C. 
D. 
Find the x-intercepts of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept. f(x) = x4 - 16x2
A. 0, touches the x-axis and turns around; 16, touches the x-axis and turns around B. 0, crosses the x-axis; 4, crosses the x-axis; -4, crosses the x-axis C. 0, touches the x-axis and turns around; 4, crosses the x-axis; -4, crosses the x-axis D. 0, touches the x-axis and turns around; 16, crosses the x-axis
Write the augmented matrix for the system.
A. 
B. 
C. 
D. 
Determine whether the pair of lines is parallel, perpendicular, or neither.y = - 
x + 6y = 
x + 6
A. Parallel B. Perpendicular C. Neither