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jblitz.1000

  • one year ago

I need help with this formula (a+b)(a^2-2ab-b^2) very badly

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  1. jblitz.1000
    • one year ago
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    I need to know if I set it up correctly. I feel as if I may have the signs confused. If I dont, could someone inform me on how to do the negative version of it also?

  2. Iamgmg90
    • one year ago
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    for reversed signs .... same signs equal positive, different signs equal positive...multiply it out yourself so its ingrained in your head

  3. jblitz.1000
    • one year ago
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    (a - b)(a 2 + ab + b 2) this is the actual equation that I need help with I just realized.

  4. Iamgmg90
    • one year ago
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    multiply out, learn sign rules and index rules for multiplication and division.

  5. jblitz.1000
    • one year ago
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    Would it be (a - b)(a^2 + ab + b^2) always and then the opposite is (a + b)(a^2 - ab + b^2) always?

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