Question

Упростите выражение 7 класс. Заранее благодарю

Answer 1

$( frac{5c ^{2}-c }{25c ^{2}-10c+1 }+ frac{4}{1-25c ^{2} } ):(1- frac{3}{5c-1} )- frac{c}{5c+1 } \ ( frac{c(5c -1) }{(5c -1) ^{2} }+ frac{4}{(1-5c)(1+5c) } ):( frac{5c-1-3}{5c-1} )- frac{c}{5c+1 } \ ( frac{c }{(5c -1)}- frac{4}{(5c-1)(5c+1) } ):( frac{5c-4}{5c-1} )- frac{c}{5c+1 } \ (frac{c(5c+1)-4}{(5c-1)(5c+1) } ):( frac{5c-4}{5c-1} )- frac{c}{5c+1 } \ (frac{5c^{2}+c-4}{(5c-1)(5c+1) } ):( frac{5c-4}{5c-1} )- frac{c}{5c+1 }$
$(frac{(5c-4)(c+1)}{(5c-1)(5c+1) } )*( frac{5c-1}{5c-4} )- frac{c}{5c+1 } \ frac{c+1}{5c+1} - frac{c}{5c+1 } = frac{c+1-c}{5c+1} = frac{1}{5c+1}$