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42 points

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.

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31 points

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.

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18 points

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

ax², bx¹, cx⁰

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22 points

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

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7 points
*

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

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8 points

No no, ab is purple.

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5 points

As you wish, my lord/lady.

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6 points

FOIL reading left to right.

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4 points

Me too

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