Expand the expression.(4x + 3)4
A. 256x4 + 864x3 + 768x2 + 432x + 81
B. 256x3 + 768x2 + 864x + 432
C. (16x2 + 12x + 9)4
D. 256x4 + 768x3 + 864x2 + 432x + 81
Answer: D
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Simplify.(a2x4)5
A. a10x20 B. 2ax20 C. 4a2x20 D. a7x9
Solve the problem.A bathroom scale is compressed 
in. when a 180 lb person stands on it. Assuming that the scale behaves like a spring that obeys Hooke's law, how much does someone who compresses the scale 
in. weigh?
A. 45 lb B. 135 lb C. 90 lb D. 360 lb
How many edges does a complete graph of 5 vertices contain?
a. 15 b. 10 c. 120 d. 24
Find the zeros 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) = 3x2 - x3
A. x = 0, touches the x-axis and turns around;
x = 3, crosses the x-axis
B. x = 0, touches the x-axis and turns around;
x = 
, crosses the x-axis;
x = -
, crosses the x-axis
C. x = 0, crosses the x-axis;
x = 
, crosses the x-axis;
x = -
, crosses the x-axis
D. x = 0, touches the x-axis and turns around;
x = 3, touches the x-axis and turns around