Queene561 Queene561

28-03-2016
Mathematics

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

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zerofrancisco zerofrancisco

28-03-2016

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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