Question

Tìm x

( n - 5 ) ^4 = ( n - 5 ) ^6

 

Answer 1

WHERE IS X ??????

NẾU THẤY SAI TÍCH MIK NHA

Answer 2

( n - 5 )⁴ = ( n - 5 )⁶

( n - 5 )⁶ - ( n -5 )⁴ = 0

( n - 5 )⁴ . ( n -5 )² - ( n - 5 )⁴ = 0

( n - 5 )⁴ . ( (n - 5 )² -1 ) = 0

\(\orbr{\begin{cases}n-5=0\\\left(n-5\right)^2-1=0\end{cases}}\)

\(\orbr{\begin{cases}n=5\\n=6\end{cases}}\)