\(\left(7-x\right)\left(2019.2019.1024....\right)=0\)
\(\Leftrightarrow7-x=0\)
\(\Leftrightarrow x=7\)
Bài làm
( 7 - x) . ( 2019 . 2019 . 1024 . 12465 . 465768 . 97868 . 4464 . 9808087 . 5456 . 4 . 4533) = 0
=> ( 7 - x ) = 0 : ( 2019 . 2019 . 1024 . 12465 . 465768 . 97868 . 4464 . 9808087 . 5456 . 4 . 4533)
=> 7 - x = 0
=> x = 0 + 7
=> x = 7
Vậy x = 7
# Học tốt #
( 7 - x ) .( 2019 x 2019 x 1024 x ..... x 4 x 4533 ) = 0
=> ( 7 - x ) .= 0 : ( 2019 x 2019 x 1024 x ..... x 4 x 4533 )
=> 7 - x = 0
=> x = 7 - 0
=> x = 7
=> Vậy x = 7.
#fighting