• @[email protected]
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    421 year ago

    It’s so strange that it was always taught me as a²+b²+2ab. Of course I know it doesn’t matter, but still strange to see it this way.

    • @funnystuff97
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      321 year ago

      It makes more sense to me because, when binomials are taught, it’s usually in the form of a variable and a constant.

      E.G. a = x, b = 3: (x + 3)^2. When expanded, that’s usually x^2 + 6x + 9, and not x^2 + 9 + 6x.

      • @[email protected]
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        181 year ago

        Exactly, you are going to lower and lower powers. (Is power the word in English here?)

        ax², bx¹, cx⁰

        • @prayer
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          221 year ago

          Right, but if you look in the field of probabilities, specifically when expanding binomial distributions, you go increasing powers with one and decreasing powers with the other.

          ax^4 + bx^3y + cx2y2 + dxy^3 + ey^4

          That’s why it makes sense to me to read it a^2 + 2ab + b^2

    • @Dicska
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      1 year ago

      A less maths-y approach: a is blue, b is red, ab is pink purple. How would you order them?