Find the least common denominator of the rational expressions.
and 
A. (x + 9)( x - 9)
B. (x + 9)(x - 9)2
C. (x2 + 9)( x2 - 9)
D. x( x - 9)
Answer: A
Mathematics
You might also like to view...
Solve the system by substitution.x + y = -2x - y = -8
A. {(5, 4)} B. {(-5, 3)} C. ? D. {(-6, 4)}
Mathematics
Write the interval as an inequality involving x. Graph the inequality.(-3, 1]
A. -3 ? x < 1
B. -3 < x ? 1
C. -3 < x < 1
D. -3 ? x ? 1
Mathematics
Expand.
5
A. m5 + 15m2 + 90m + 
+ 
+ 
B. m5 + 15m3 + 90m + 
+ 
+ 
C. m5 + 15m3 + 90m + 
+ 
+ 
D. m5 + 15m3 + 90m2 + 
+ 
+ 
Mathematics
Find all real and imaginary solutions.x3 + 3x2 + 9x + 27 = 0
A. {-3, ±
}
B. {-
, ±3i}
C. {-3, ±3i}
D. {-3, 27i, 9i}
Mathematics