Factor by grouping.10a3 - 8a2b + 15ab2 - 12b3
A. (2a2 + 3b)(5a - 4b)
B. (2a2 - 3b2)(5a + 4b)
C. (10a2 + 3b2)(a - 4b)
D. (2a2 + 3b2)(5a - 4b)
Answer: D
Mathematics
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Use implicit differentiation to find dy/dx and d2y/dx2.x2 + y2 = 9
A. 
= - 
; 
= - 
B. 
= - 
; 
= - 
C. 
= - 
; 
= - 
D. 
= 
; 
= 
Mathematics
Simplify the rational expression. Use factoring, and assume all variable expressions represent positive real numbers.
A. 
B. 
C. 
D. 
Mathematics
Match the equation with the correct graph.y - 2 = 
(x - 2)
A. 
B. 
C. 
D. 
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Simplify the expression. Assume that all variables represent non-negative real numbers.
+ 
A. 13
B. 13
C. -5
D. 91
Mathematics