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anonymous

  • 5 years ago

3x^2 + 18x + 27 Factor and show work.

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  1. anonymous
    • 5 years ago
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    The first thing you do is to take out the common factor which is 3. So you have 3(x^2 + 6x + 9) Then you are trying to find factors of 9 that add to get 6. That would be 3 and 3. So it factors into 3(x + 3)(x + 3) which should be written 3(x + 3)^2

  2. anonymous
    • 5 years ago
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    You can factor out a 3 from the beginning: \[3(x^2+6x+9) \rightarrow3(x+3)*(x+3) = 3(x+3)^2\]

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