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21 March, 02:49

Find the product. (a2 + 2a + 1) (a + 1) a. A2 + 3a + 2 b. A3 + 3a2 + 3a + 1 c. A3 + 2a 2 + a + 1 d. A3 + 3a2 + a + 1

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  1. 21 March, 03:00
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    (a + 1) (a² + 2a + 1)

    = a (a² + 2a + 1) + 1 (a² + 2a + 1)

    = a³ + 2a² + a + a² + 2a + 1

    = a³ + 3a² + 3a + 1

    Answer: b
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