Factor the four-term polynomial by grouping.10a3 + 8a2b - 25ab2 - 20b3
A. (2a2 - 5b)(5a + 4b)
B. (2a2 + 5b2)(5a - 4b)
C. (2a2 - 5b2)(5a + 4b)
D. (10a2 - 5b2)(a + 4b)
Answer: C
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Factor, using the given factor. Assume all variables represent positive real numbers.4m11/4 - 3m-1/2; m-1/2
A. 3 m-1/4(4m13/4 - 1) B. m-1/2(12m13/4 - 4) C. m-1/2(4m13/4 - 3) D. m-1/2(4m11/4 + 3)
Find the first 4 terms of the recursively defined sequence.a1 = 4, an+1 = 
A. 
, 16, 
, 64
B. 4, 
, 
, 
C. 4, 
, 
, 
, 
D. 4, 
, 4, 
Graph the solution set of the system of inequalities or indicate that the system has no solution.
A. 
B. 
C. 
D. 
Use synthetic division to find the quotient and the remainder.x5 + x2 - 2 is divided by x + 3
A. x4 - 3x3 + 9x2 - 26x + 78; remainder -236 B. x4 - 3x3 + 10x2 - 30x + 90; remainder -272 C. x4 - 2; remainder 4 D. x4 - 2x2; remainder 4