What is (A+B)⁸?
You do A⁸
Next you do (A+A+A+A+A+A+A) times B which equals A⁷B
Next you do (A+A+A+A+A+A) times (B+B) which equals A⁶B²
Next you do (A+A+A+A+A) times (B+B+B) which equals A⁵B³
Next yo do (A+A+A+A) times (B+B+B+B) which equals A⁴B⁴
Next you do (A+A+A) times (B+B+B+B+B) which equals A³B⁵
Next you do (A+A) times (B+B+B+B+B) which equals A²B⁶
Next you do A times (B+B+B+B+B+B+B) which equals AB⁷
Lastily you do B⁸
Now you put the answer together
=A⁸ + A⁷B + A⁶B² + A⁵B³ A⁴B⁴ + A³B⁵ + A²B⁶ + AB⁷ + B⁸
Now you put the answer together
=A⁸ + A⁷B + A⁶B² + A⁵B³ A⁴B⁴ + A³B⁵ + A²B⁶ + AB⁷ + B⁸
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