Question

tìm x>1 biết:5x(x-2000)-x+2000=0

Answer 1

Supper Saydan Goku

Answer 2

5x(x-2000)-x+2000=0

<=>5x(x-2000)-(x-2000)=0

<=>(5x-1)(x-2000)=0

<=>5x-1=0 hoặc x-2000=0

<=>5x=1 hoặc x=2000

5x=1,Mà x>1 =>loại

=>x=2000

Answer 3

Ta có:5\(\times\)(x-2000)-x+2000=0

         x\(\times\)5-2000\(\times\)5-x+2000=0

         x\(\times\)4-8000=0

        \(\Rightarrow\)x\(\times\)4=8000

             x=8000\(\div\)4=2000

Vậy x bằng 2000.