Factor the difference of two squares completely.9x2 - 49y2

A. (3x + 7y)2
B. (3x + 7y)(3x - 7y)
C. (3x - 7y)2
D. Prime


Answer: B

Mathematics

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A. Yes B. No

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Perform the indicated operation. Simplify if possible. + 

A. x - 5
B.
C. x + 3
D. x - 3

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Find the solution set of the linear system. Identify inconsistent systems and dependent equations. For dependent equations, write your answer as an ordered triple in terms of z.

A. {(-1, 1, 1)} B. {(0, 0, 1)} C. {(1, -1, 1)} D. {(0, 1, 0)}

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Find the x- and y-intercepts of f.f(x) = 9x - x3

A. x-intercepts: 0, 3, -3; y-intercept: 0 B. x-intercepts: 0, -9; y-intercept: 9 C. x-intercepts: 0, -9; y-intercept: 0 D. x-intercepts: 0, 3, -3; y-intercept: 9

Mathematics