Question

a)1 3x

-----+-----

x+1 x+1

b) 1 2

-------*------

x x+1

c)1 2

------ - -----

x x+2

d)(x-1)do kwadratu (x-1)(x+2)

-------------- : -----------------

x x do kwadratu

Answer 1

a)

x≠-1

x∈R\{-1}

 

 

b)

x≠0

x≠-1

x∈R\{0;-1}

 

 

c)

x≠0

x≠-2

x∈R\{0;-2}

 

 

d)

x≠0

x∈R\{0}