Factor by grouping.2y - 8 + xy - 4x
A. (x - 4)(2y + x)
B. (y - 4)(2 + x)
C. (x - 4)(y + 2)
D. (y - 4x)(2 + x)
Answer: B
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Solve the problem.A 41-inch-square TV is on sale at the local electronics store. If 41 inches is the measure of the diagonal of the screen, use the Pythagorean theorem to find the length of the side of the screen.
A. 
in.
B. 
C. 
in.
D. 
in.
Solve the problem.A box has dimensions 2" × 3" × 4". (See illustration.) 
Determine the angle ? formed by the diagonal of the 2" × 3" side and the diagonal of the 3" × 4" side. Round your answer to the nearest degree.
A. 60° B. 65° C. 62° D. 50°
Use the Change-of-Base Formula and a calculator to evaluate the logarithm. Round your answer to three decimal places. log234.2
A. 0.301 B. 2.548 C. 0.196 D. 5.096
Find the set of possible rational zeros given the function.f(x) = x3 - 5x2 + 10x - 24
A. 
B. {±1, ±2, ±3, ±4, ±6, ±12, ±24}
C. {±1, ±2, ±3, ±4, ±24}
D. {±1, ±2, ±3, ±4, ±6, ±8, ±12, ±24}