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Advent calendar 2023
17 December
All 2023 advent puzzles
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If you expand \((a+b+c)^2\), you get \(a^2+b^2+c^2+2ab+2ac+2bc\). This has 6 terms.
How many terms does the expansion of \((a+b+c+d+e+f)^5\) have?
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\((a+b+c+d+e+f)^5\) has
252
terms.
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ave
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balancing
geometry
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dodecagons
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the only crossnumber
chalkdust crossnumber
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christmas
tangents
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dominos
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dates
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square roots
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cryptic crossnumbers
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doubling
calculus
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