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16 June, 01:37

What is the expanded form of 3x (x+3) ^2?

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  1. 16 June, 01:50
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    We need to expand the square binomial and then multiply:

    3x (x + 3) ^2

    = 3x (x + 3) (x + 3)

    = 3x (x^2 + 6x + 9)

    = 3x^3 + 18x^2 + 27x
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