Factor completely. If the polynomial is prime, state this.u2 - 2uv - 63v2
A. (u - 7v)(u + 9v)
B. (u - 7v)(u + v)
C. (u + 7v)(u - 9v)
D. (u - v)(u + 9v)
Answer: C
Mathematics
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Simplify the expression. Assume that all variables are positive when they appear.
A. 
B. 
C. 
D. 
- 
Mathematics
Simplify the expression.6
(
+ 
)
A. 6
+ 7
B. 6
+ 7
C. 6
+ 42
D. 42
+ 42
Mathematics
Simplify. Express your answer with positive exponents. Assume that all variables are nonzero.x-7
A. - 
B. x1/7
C. 
D. -x7
Mathematics
Find the dot product for the pair of vectors.
, 
A. -49 B. 211 C. -130 D. 81
Mathematics