Question

Tìm x,y.     2016(x-1)²⁰¹⁶+2017(y-1)²⁰¹⁸=0

Answer 1

Vì 2016(x-1)²⁰¹⁶ + 2017(y-1)²⁰¹⁸ = 0

Mà    2016(x-1)²⁰¹⁶  \(\ge\)0     ;     2017(y-1)²⁰¹⁸ \(\ge\)0

=> 2016(x-1)²⁰¹⁶ = 2017(y-1)²⁰¹⁸ =0

=> x-1 = y-1 = 0

=> x=y=1