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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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algebra
,
expansions
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Tags
doubling
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functions
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consecutive integers
coins
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ave
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chalkdust crossnumber
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area
averages
shapes
prime numbers
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complex numbers
dodecagons
arrows
factors
sequences
rugby
volume
logic
pentagons
mean
multiples
digital products
determinants
geometric mean
division
cryptic crossnumbers
speed
the only crossnumber
clocks
range
perimeter
factorials
means
gerrymandering
graphs
cryptic clues
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colouring
2d shapes
pascal's triangle
proportion
circles
balancing
indices
remainders
polygons
sets
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star numbers
multiplication
partitions
rectangles
number
even numbers
probability
fractions
wordplay
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angles
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lines
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spheres
advent
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