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2 March, 23:43

Find the product of 3a+5 and 2a^ (2) + 4a-2

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  1. 2 March, 23:55
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    The answer is 6 a3 + 22 a2 + 14a - 10

    My steps:

    (3a + 5) (2 a^2 + 4a - 2) = (3a + 5) (2 a^2 + 4a + - 2) = (3a) (2 a^2) + (3a) (4a) + (3a) (-2) + (5) (2 a^2) + (5) (4a) + (5) (-2) = 6 a^3 + 12 a^2 - 6a + 10 a^2 + 20a - 10 = 6 a^3 + 22 a^2 + 14a - 10
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