Factor the trinomial by grouping.8x2 - 6xy - 9y2

A. prime
B. (8x + 3y)(x - 3y)
C. (4x - 3y)(2x + 3y)
D. (4x + 3y)(2x - 3y)

Answer: D

Mathematics

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A. 3x4y6 B. 9x4y6 C. -3x4y6 D. -3x6y9

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Simplify. Assume that variables can represent any real number.

A. 8?y? + 8 B. 8y + 8 C. ?8y + 8? D. -8y - 8

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The graph of a function f(x) is sketched below. Which of the following is f(x)?

A. f(x) =  - 2
B. f(x) =  + 2
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D. f(x) = 

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Solve the equation. Don't forget to first simplify each side of the equation, if possible.6(x - 1) - (5x + 9) = 9

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