Simplify by writing the expression with positive exponents. Assume that all variables represent nonzero real numbers.
A. 
B. - 
C. 
D. 
Answer: D
Mathematics
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Given the function f, match the function g with a transformation of f.f(x) = x2 - 1, g(x) = (x + 3)2 - 1
A. f(x) + 3 B. f(x + 3) C. f(x - 3) D. f(x) - 3
Mathematics
Find the LCD for the given fractions.
and 
A. 336 B. 1344 C. 224 D. 672
Mathematics
Decide whether the expression has been simplified correctly.40x = x
A. Not simplified correctly B. Simplified correctly
Mathematics
Factor completely. If a polynomial cannot be factored, say it is prime.z2 - 16
A. (x - 4)2 B. (z + 4)(z - 4) C. (x + 4)2 D. prime
Mathematics