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haileemackk

  • 3 years ago

Could you check my answer? y = x^2 + 3x + 2 List all the factors of 2: 1 * 2 = 2 -1 * -2 = 2 Find the product of 2 and sum of 3. 1 * 2 = 2 and 1 + 2 = 3 Place the numbers into a binomial: (x + 2)(x + 1) Is that right? It just seems too simple to be the right answer.

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  1. jim_thompson5910
    • 3 years ago
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    you are correct, x^2 + 3x + 2 factors to (x+2)(x+1)

  2. andrew7364
    • 3 years ago
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    to check yourself, all you gotta do is multiply the factors back together.

  3. jim_thompson5910
    • 3 years ago
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    Check: (x+2)(x+1) = x(x+1) + 2(x+1) (x+2)(x+1) = x*x+x*1 + 2*x+2*1 (x+2)(x+1) = x^2+x + 2x + 2 (x+2)(x+1) = x^2 + 3x + 2

  4. itsmylife
    • 3 years ago
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    your right @haileemackk

  5. haileemackk
    • 3 years ago
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    Okay, thanks! I wasn't completely sure.

  6. itsmylife
    • 3 years ago
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    :) Your welcome

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