Asked by Lia
1) Use the Binomial Theorem to write out the expansion of (a+b+c)^4. Hint think of (a+b+c)^4 as [(a+b]) +c]^4.
2) Use the Binomial Theorem to write out the expansion of (x−2+y)^3. Think of (x−2+y)^3 as [(x−2)+y]^3
2) Use the Binomial Theorem to write out the expansion of (x−2+y)^3. Think of (x−2+y)^3 as [(x−2)+y]^3
Answers
Answered by
oobleck
I'll get you started on the 2nd one.
[(x−2)+y]^3
= (x-2)^3 + 3(x-2)^2 y + 3(x-2) y^2 + y^3
= ...
The first one is even easier.
[(x−2)+y]^3
= (x-2)^3 + 3(x-2)^2 y + 3(x-2) y^2 + y^3
= ...
The first one is even easier.
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