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( – 3b2)( – 9b) multiply then simplify please.

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User Mark Huk
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To multiply and simplify the expression (-3b^2)(-9b), you can use the rules of multiplying two negative numbers and the properties of exponents:

(-3b^2)(-9b) = 27b^3

So, (-3b^2)(-9b) simplifies to 27b^3.
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User Adam Ruth
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