Multiply.( - w)( + w)

A. t - 2w - w2
B. t - w2
C. t - w
D. t + 2w - w2


Answer: B

Mathematics

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Solve.The number of students in a school in year n is estimated by the model. About how many students are in the school in each of the first three years?

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Perform the indicated operations.(9x2 + 3x) - (9x - 1) + (4x2 - 4)

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B. x ? 12 

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