Simplify by factoring.
A. 3xy2
B. 3x
C. 3xy
D. 3x2
Answer: B
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Factor completely.t3 + 729
A. (t + 9)(t2 + 81) B. (t - 9)(t2 + 9t + 81) C. (t - 729)(t2 - 1) D. (t + 9)(t2 - 9t + 81)
Solve.The daily number of requests, f(x), for a song that a local radio station receives can be modeled by the formula
, where x is the number of days after the song has been released. During which time period will the daily number of requests be below 7?
A. between day 1 and day 3 B. between day 2 and day 6 C. between day 1 and day 4 D. between day 3 and day 4
Factor by any method.(p - q)2 + 20(p - q) + 100
A. prime B. (p - q + 10)(p - q - 10) C. (p - q + 10)2 D. (p - q + 100)(p - q)
Use the "intersect" feature on a graphing calculator to solve the quadratic equation. Round all solutions to the second decimal place.-x2 - 2x + 4 = -x - 4
A. -3.37, 2.37 B. 4.37, -2.70 C. 2.37 D. -3.37