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 8: 2xy^2*(xy+3x^2y-2/3xy^3) 3x*(2x^3-4x) 3/5x^3y^4*(7x^4+5x^2y-10/21x^4y^3-y^4) mn giúp em vs ạ

Home/ Toán Lớp 8: 2xy^2*(xy+3x^2y-2/3xy^3) 3x*(2x^3-4x) 3/5x^3y^4*(7x^4+5x^2y-10/21x^4y^3-y^4) mn giúp em vs ạ

Toán Lớp 8: 2xy^2*(xy+3x^2y-2/3xy^3) 3x*(2x^3-4x) 3/5x^3y^4*(7x^4+5x^2y-10/21x^4y^3-y^4) mn giúp em vs ạ

Tháng Mười Hai 11, 2022 Toán học 2 Comments 0 views

Toán Lớp 8: 2xy^2*(xy+3x^2y-2/3xy^3)
3x*(2x^3-4x)
3/5x^3y^4*(7x^4+5x^2y-10/21x^4y^3-y^4)
mn giúp em vs ạ

Comments ( 2 )

  1. diemmyhoa
    diemmyhoa
    11 Tháng Mười Hai, 2022 at 4:16 chiều
    Reply
    2xy^2 (xy+3x^2y-2/3 xy^3)=2x^2y^3 +6x^3y^3 – 4/3 x^2 y^5
    3x(2x^3-4x)=6x^4-12x^2
    3/5 x^3y^4 (7x^4+5x^2y-10/21x^4y^3-y^4)
    =21/5 x^7y^4+3x^5y^5-2/7 x^7y^7-3/5 x^3y^8

  2. trucoanh55
    trucoanh55
    11 Tháng Mười Hai, 2022 at 4:16 chiều
    Reply
    2xy^2 (xy+3x^2y-2/3xy^3)
    =2xy^2 . xy+2xy^2 . 3x^2y-2xy^2 . 2/3xy^3
    =2x^2y^3 + 6x^3y^3 – 4/3x^2y^5
     $$$$
    3x(2x^3-4x)
    =3x.2x^3-3x.4x
    =6x^4-12x^2
    $$$$
    3/5x^3y^4 (7x^4+5x^2y-10/21x^4y^3-y^4)
    =3/5x^3y^4 . 7x^4+3/5x^3y^4 . 5^2y-3/5x^3y^4 . 10/21x^4y^3 – 3/5x^3y^4 . y^4
    =21/5x^7y^4+3x^5y^5-2/7x^7y^7 – 3/5x^3y^8

Leave a reply

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

Thái Lâm

About Thái Lâm