Simplify the expression.3y(xy + y) - 9y 2(x - 2 + 5y) + 2(y 3 + y 2)
A. - 6xy 2 + 21y 2 + 20y 3
B. - 6xy 2 + 23y 2 - 43y 3
C. 12xy 2 + 21y 2 - 43y 3
D. 6xy 2 + 21y 2 - 20y 3
E. none of these
Answer: B
Mathematics
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A. 
B. - 
C. - 
D. 
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Express the integrand as a sum of partial fractions and evaluate the integral.
dx
A. 5 ln 
- 
+ C
B. 5 ln 
+ 
+ C
C. 5 ln 
+ 
+ C
D. 2 ln 
- 
+ C
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?
What will be an ideal response?
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Factor the trinomial or state that the trinomial is irreducible.6x2 - 29x + 20
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Mathematics