Factor by grouping.20a3 + 8a2b - 15ab2 - 6b3
A. (4a2 - 3b)(5a + 2b)
B. (20a2 - 3b2)(a + 2b)
C. (4a2 + 3b2)(5a - 2b)
D. (4a2 - 3b2)(5a + 2b)
Answer: D
Mathematics
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Provide an appropriate response.A common factor of the expression rs + rt is 
.
A. t B. r C. s + t D. s
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Test the equation for symmetry with respect to the given axis, line, or pole.r = 2 + 4 sin ?; the polar axis
A. May or may not be symmetric with respect to the polar axis B. Symmetric with respect to the polar axis
Mathematics
Solve the inequality and write the solution set using interval notation; then graph the solution set on a number line. s2 - 3s - 18 < 0
A. (-3, 6)
B. (6, ?)
C. (-?, -3)
D. (-?, -3) ? (6, ?)
Mathematics
Find the x-intercepts of the graph of each equation.y = 15x2 + 35x
A. 
, (0, 0)
B. 
C. 
, (35, 0)
D. (0, 0)
Mathematics