Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. x + 2
B. 
C. 
D. x - 2
Answer: B
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Perform the indicated operation.(-5x7 + 2x9 + 9) + (-7x8 + 6) - (2x8 + 6x9 - 7x7)
A. 8x9 - 5x8 - 12x7 + 15 B. -4x9 - 9x8 + 2x7 + 15 C. 8x9 - 5x8 - 12x7 + 3 D. -4x9 - 5x8 - 12x7 + 3
Use the accompanying table to find the solutions to the given equation on 
cos ? - sin ? cos ? = 0
Y1 = cos(X)-sin(X)cos(X)
A. 0°, 180° B. 90°, 180° C. 45°, 135°, 225°, 315° D. 90°, 270°
Factor completely.x2 - x - 42
A. (x - 7)(x + 7) B. (x + 1)(x - 13) C. (x + 6)(x - 7) D. (x + 7)(x - 6)
Solve the problem.During a poll, 11,800 people were asked whether they favored a particular ballot measure. 50% of them said they favored the measure. How many people favored the ballot measure?
A. 5900 people B. 5890 people C. 590 people D. 59,000 people