Factor completely. If the polynomial is prime, say so.x4 - 81
A. (x2 + 9)(x + 3)(x - 3)
B. Prime
C. (x2 - 9)(x + 3)(x - 3)
D. (x + 3)2(x - 3)2
Answer: A
Mathematics
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Expand and simplify the given expression by use of Pascal's triangle.(4x + 2)5
A. (16x2 + 16x + 4)5 B. 1024x5+ 320x4 + 1280x3 + 1280x2 + 320x + 32 C. 1024x5 + 512x4 + 256x3 + 128x2 + 64x + 32 D. 1024x5 + 2560x4 + 2560x3 + 1280x2 + 320x + 32
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Decide if the statement is true or false.-(-7) > -21
A. False B. True
Mathematics
Given f(x) and g(x), find the indicated composition and state its domain.f(x) = 
; g(x) = x - 3Find (g ? f)(x).
A. 
, all real numbers except 0
B. 
, all real numbers except 3
C. 
, all real numbers except 
D. 
- 3, all real numbers except 0
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Add and simplify.
+ 
A. 
B. 
C. 
D. 
Mathematics