Factor the expression.a2(a + b)2 - ab(a + b)2 - 12b2(a + b)2
A. (a + b)2(a - 4)(a + 3)
B. (a + b)2(a - 3b)(a + 4b)
C. (a - 4b)(a + 3b)(a + b)
D. (a + b)2(a - 4b)(a + 3b)
Answer: D
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Use logarithmic differentiation to find the derivative of y.y = (x3 + 1)3(x - 1)2x3
A. (x3 + 1)3(x - 1)2x3(3ln(x3 + 1) + 2ln(x - 1) + 3ln x)
B. (x3 + 1)3(x - 1)2x3
C. (x3 + 1)3(x - 1)2x3
D. 
+ 
+ 
Factor by grouping.r3 + r2 + 2r + 2
A. (r2 + 1)(r + 2) B. (r2 + 2)(r + 2) C. (r2 + 2)(r - 2) D. (r2 + 2)(r + 1)
Identify the greatest common factor.2x2y - 10xy2
A. 2 B. 2x2y2 C. 2xy D. xy
Find sin ?, cos ?, tan ?, csc ?, sec ?, and cot ? for an acute angle ? in a right triangle. It is not necessary to find the measure of ?.csc ? = 
A. sin ? = 
cos ? = 
tan ? = 
csc ? = 
sec ? = 
cot ? = 
B. sin ? = 
cos ? = 
tan ? = 
csc ? = 
sec ? = 
cot ? = 
C. sin ? = 
cos ? = 
tan ? = 
csc ? = 
sec ? = 
cot ? = 
D. sin ? = 
cos ? = 
tan ? = 
csc ? = 
sec ? = 
cot ? = 