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anonymous

  • one year ago

Please Help! Fan and Medal!!!! Factor: x2 + 5x + 6 A. (x + 3)(x + 2) B. (x - 3)(x + 2) C. (x + 3)(x - 2) D. (x + 5)(x + 1)

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  1. anonymous
    • one year ago
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    i think its C, but not sure.

  2. calculusxy
    • one year ago
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    You can use FOIL to check out which answer choice might work.

  3. anonymous
    • one year ago
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    i don't know how to do this

  4. calculusxy
    • one year ago
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    So FOIL stands for: First Outside Inner Last

  5. anonymous
    • one year ago
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    the answer is A btw

  6. calculusxy
    • one year ago
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    Let's take the first choice as an example: \[(x+ 3) (x+2)\] "First": \[x \times x = x^2\] "outside": \[x \times 2 = 2x\] "inner": \[3 \times x = 3x\] "last": \[3 \times 2 = 6\] now put them all together: \[x^2 + 2x + 3x + 6\]

  7. calculusxy
    • one year ago
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    Simplify it and then see if it matches :)

  8. calculusxy
    • one year ago
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    @kierstenfouts Do you understand how I used FOIL? It's a really useful method!

  9. anonymous
    • one year ago
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    i do

  10. calculusxy
    • one year ago
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    Great !

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