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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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
Provide an appropriate response.A common factor of the expression rs + rt is 
.
A. t B. r C. s + t D. s
Mathematics
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