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Jravenv

  • one year ago

Help please, best answer given, screenshot in comments.

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  1. Jravenv
    • one year ago
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  2. anonymous
    • one year ago
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    1) -15*1 because 1 is the coefficient of x^2. 2) which factors of -15=-2? 3) -3, 5. So, x^2-2x-15= (x-3)(x+5) 4) what can make this=0? 5) x=3, x=-5.

  3. Jravenv
    • one year ago
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    That makes sense, thank you very much!

  4. sdfgsdfgs
    • one year ago
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    wait wait wait x^2-2x-15 should be (x-5)(x+3) instead so the ans should be....

  5. anonymous
    • one year ago
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    Oh ya! sorry!

  6. anonymous
    • one year ago
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    They are right

  7. Jravenv
    • one year ago
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    Wait so which is the answer? :( I'm sorry I'm now confused

  8. anonymous
    • one year ago
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    -3 and 5

  9. anonymous
    • one year ago
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    AGHH sorry -5 and 3

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spraguer (Moderator)
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