SOLUTION: Multiply 3x^3(x-2)(x+2)

Algebra.Com
Question 23764: Multiply
3x^3(x-2)(x+2)
Answer by AnlytcPhil(1806)   (Show Source): You can put this solution on YOUR website!
3x3(x - 2)(x + 2)

First just work on the 3x3(x-2) only, but don't forget to bring the (x + 2)
each time.

(3x3·x - 3x3·2)(x + 2)

(3x4 - 6x3)(x + 2)

Now you can use FOIL

3x4·x + 3x4·2 - 6x3·x - 12x3

3x5 + 6x4 - 6x4 - 12x3

The middle two terms cancel, and we get

3x5 - 12x3 

Edwin
AnlytcPhil@aol.com
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