Упрости выражения 1) \cfrac{x+3y}{xy} - \cfrac{2x+3y}{xy} = \cfrac{x+3y-(2x+3y)}{xy} = . 2) \cfrac{a^{2}+1}{a-1} - \cfrac{2a}{a-1} = . 3) \cfrac{b^{2}+2b}{b^{2}-16} + \cfrac{6b+16}{b^{2}-16} = . 4) \cfrac{3b}{b-c} + \cfrac{3c}{c-b} = \cfrac{3b}{b-c} + \cfrac{3c}{-(b-c)} = \cfrac{3b}{b-c} - \cfrac{3c}{b-c} = . 5) \cfrac{2m-5n}{m-4n} + \cfrac{7n-m}{4n-m} = . 6) \cfrac{p^{3}}{(p-2)^{2}} - \cfrac{8}{(2-p)^{2}} = .
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Упрости выражения

  1.     \(\cfrac{x+3y}{xy} - \cfrac{2x+3y}{xy} = \cfrac{x+3y-(2x+3y)}{xy} =\) [ ].

  2. \(\cfrac{a^{2}+1}{a-1} - \cfrac{2a}{a-1} =\) [ ].

  3. \(\cfrac{b^{2}+2b}{b^{2}-16} + \cfrac{6b+16}{b^{2}-16} =\) [ ].

  4.       \(\cfrac{3b}{b-c} + \cfrac{3c}{c-b} = \cfrac{3b}{b-c} + \cfrac{3c}{-(b-c)} = \cfrac{3b}{b-c} - \cfrac{3c}{b-c} =\) [ ].     

  5.       \(\cfrac{2m-5n}{m-4n} + \cfrac{7n-m}{4n-m} =\) [ ].      

  6.     \(\cfrac{p^{3}}{(p-2)^{2}} - \cfrac{8}{(2-p)^{2}} =\) [ ].

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