Question

(b/c) - ((b2+c2)/bc)+(c-b/b)

упростить 

Answer 1

$frac{b}{c}-frac{b^{2}+c^{2}}{cb}+c-frac{b}{b}=frac{b^{2}-b^{2}+c^{2}+cb-cb}{bc}=frac{c^{2}}{bc}=frac{c}{b}$

Answer 2

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