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 7: `6.( -1/3 )^3 – 3. ( -1/3 )^2 – 2. ( -1/3 ) + 1`

Home/ Toán Lớp 7: `6.( -1/3 )^3 – 3. ( -1/3 )^2 – 2. ( -1/3 ) + 1`

Toán Lớp 7: `6.( -1/3 )^3 – 3. ( -1/3 )^2 – 2. ( -1/3 ) + 1`

Tháng Hai 15, 2023 Toán học 2 Comments 0 views

Toán Lớp 7: 6.( -1/3 )^3 – 3. ( -1/3 )^2 – 2. ( -1/3 ) + 1

Comments ( 2 )

  1. tuenhioanh
    tuenhioanh
    15 Tháng Hai, 2023 at 12:33 chiều
    Reply
    6 . ( -1/3)^3 – 3 . (-1/3)^2 – 2 . (-1/3) + 1
    = 6 . (-1/27) – 3 . 1/9 – 2 . (-1/3) + 1
    = -2/9 – 1/3 – (-2/3) + 1
    = -2/9 – 3/9 + 6/9 + 9/9
    = \frac{-2-3+6+9}{9}
    = 10/9

  2. huyenmi76
    huyenmi76
    15 Tháng Hai, 2023 at 12:33 chiều
    Reply
    6 . ( – 1/3 )^3 – 3 . ( – 1/3 )^2 – 2 . ( – 1/3 ) + 1
    = 6 . ( – 1 )/27 – 3 . 1/9 – ( – 2 )/3 + 1
    = ( – 2 )/9 – 1/3 + 2/3 + 1
    = ( – 2 )/9 – 3/9 + 6/9 + 9/9
    = ( – 5 )/9 + 6/9 + 9/9
    = 1/9 + 9/9
    = 10/9

Leave a reply

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

Diệu Hằng

About Diệu Hằng