Find the least common denominator for the expression.
+ x - 1
A. x - 9
B. (x + 9)(x - 9)(x - 1)
C. (x + 9)(x - 9)
D. x + 9
Answer: C
Mathematics
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Find an algebraic expression for the given expression.sin(2 tan-1 3x)
A. 
B. 
C. 
D. 
Mathematics
Form a polynomial f(x) with real coefficients having the given degree and zeros.Degree: 4; zeros: 1, -1, and 4 - 2i
A. f(x) = x4 - 8x3 + 19x2 + 8x - 20 B. f(x) = x4 - 8x3 + 19x2 + 8x + 20 C. f(x) = x4 + 8x3 + 19x2 + 8x - 20 D. f(x) = x4 + 8x3 + 19x2 + 8x + 20
Mathematics
Find 
when
?
?
__________
Fill in the blank(s) with the appropriate word(s).
Mathematics
Add or subtract as indicated. Simplify if necessary.- 
+ 
A. 
B. - 
C. - 
D. 
Mathematics