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3-61.
  1. Multiply and simplify each expression below. Homework Help ✎

    1. (x − 3)2

    2. (2m + 1)2

    3. x(x − 3)(x + 1)

    4. (2y − 1)(y2 + 7)

(x − 3)2 = (x − 3)(x − 3)

Multiply two of the factors together and then the third.

See part (a).

2y3y2 + 14y − 7