Answered

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(a+b)(a-b)(b-a)

help please :)

Sagot :

Answer:

a^2b -a^3 +b^3 +ab^2 - 2a^2b

Step-by-step explanation:

(a+b)(a+b) = a^2 + ab + ab + b^2 which simplifies to a^2 + b^2 + 2ab

(a^2 + b^2 + 2ab)(b-a) = a^2b + -a^3 + b^3 -ab^2 + 2ab^2 -2a^2b which simplifies to a^2b -a^3 +b^3 +ab^2 - 2a^2b

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