Multiply and simplify.( + y)( - y)

A. x - 2y
B. 4x
C. 3x - y2
D. x + 2y

Answer: C

Mathematics

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Factor by grouping.10x2 - 15xy + 8xy - 12y2

A. (5x + 4y)(2x - 3y) B. (10x + 4y)(x - 3y) C. (5x + 4)(2x - 3) D. (5x - 4y)(2x - 3y)

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Determine whether the two given lines are parallel. 3x - 4y = 3 16x + 8y = 3

A. Yes B. No

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