October 2018 1 16 Report

Uprość wyrażenie i oblicz jego wartość dla a= -1 i b= 2

a) \frac{a^{2} + 2ab + b^{2}}{a^{2}-b^{2}} * \frac{a^{3}-b^{3}}{a^{2}+ab+b^{2}}

b) \frac{a^{4}-b^{4}}{a^{2}+b^{2}-2ab} * \frac{a-b}{ab+b^{2}}


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