Register Now

Login

Lost Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

222-9+11+12:2*14+14 = ? ( )

Toán Lớp 5: (45x36x47x48)x(51×62-49×48)x(45×128-90×64)x(1995x+1997×1998)

Toán Lớp 5: (45x36x47x48)x(51×62-49×48)x(45×128-90×64)x(1995x+1997×1998)

Comments ( 2 )

  1. Giải đáp:
     0
    Lời giải và giải thích chi tiết:
    (45x36x47x48 )x (51×62-49×48)x (45×128-90×64)x (1995×1996+1997×1998)
    =(45x36x47x48) x (51×62-49×48)x (5760-5706) x (1995×1996+1997×1998)
    =(45x36x47x48) x (51×62-49×48)x 0 x(1995x+1997×1998)
    = 0

  2. ( 45 xx 36 xx 47 xx 48) xx ( 51 xx 62 – 49 xx 48) xx ( 45 xx 128- 90 xx 64) xx ( 1995 xx 1997 xx 1998)
    =( 45 xx 36 xx 47 xx 48) xx ( 51 xx 62 – 49 xx 48) xx ( 45 xx 128 – 45 xx 2 xx 64) xx ( 1995 xx 1997 xx 1998)
    =( 45 xx 36 xx 47 xx 48) xx ( 51 xx 62 – 49 xx 48) xx [ 45 xx 128 – 45 xx ( 2 xx 64)] xx( 1995 xx 1997 xx 1998)
    =( 45 xx 36 xx 47 xx 48) xx ( 51 xx 62 – 49 xx 48) xx[ 45 xx 128 – 45 xx  128] xx  ( 1995 xx 1997 xx 1998)
    =( 45 xx 36 xx 47 xx 48) xx ( 51 xx 62 – 49 xx 48) xx [45 xx ( 128 – 128)]xx  ( 1995 xx 1997 xx 1998)
    = ( 45 xx 36 xx 47 xx 48) xx ( 51 xx 62 – 49 xx 48) xx [ 45 xx 0]xx  ( 1995 xx 1997 xx 1998)
    = ( 45 xx 36 xx 47 xx 48) xx ( 51 xx 62 – 49 xx 48) xx  0 xx  ( 1995 xx 1997 xx 1998)
    = 0

Leave a reply

222-9+11+12:2*14+14 = ? ( )

About Ngọc