Question

Решите пример фото под записью

Answer 1

I hope this helps you

Answer 2

$( frac{3c+1}{c-1}+c)* frac{1}{c+1}= frac{3c+1+c^{2}-c }{c-1}* frac{1}{c+1} = frac{ c^{2}+2c+1 }{(c-1)(c+1)} = frac{ (c+1)^{2} }{(c-1)*(c+1)}= frac{c+1}{c-1}$