Simplify the expression by dividing out common factors. If the expression cannot be simplified by dividing out common factors, so state.
A. Cannot be simplified by dividing out common factors.
B. b7
C. 6
D. b6 - b
Answer: A
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Solve and graph.f + 11 < 2
A. f ? -9
B. f ? -9 
C. f < -9 
D. f > -9 
Use the even-odd properties to find the exact value of the expression. Do not use a calculator.cos (-30°)
A. - 
B. - 
C. 
D. 
Factor completely. State that the polynomial is prime if it cannot be factored.x2 - 9x + 14
A. (x - 2)(x + 7) B. (x - 2)(x - 7) C. (x + 2)(x + 7) D. (x + 2)(x - 7)
Find the intervals on which the function is increasing and the intervals on which the function is decreasing.f(x) = -x2 + 2x + 8
A. Increasing on (-?, - 1); decreasing on (- 1, ?) B. Increasing on (1, ?); decreasing on (-?, 1) C. Increasing on (-?, 1); decreasing on (1, ?) D. Increasing on (- 1, ?); decreasing on (-?, - 1)