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: Thực hiện phép tính a.(2x + 3) (x – 5) + 2x(3 – x) + x – 10 b.(6x^3y^2 – 8x^2y^3 + 4x^3y^3) : 2x^2y^2

Toán Lớp 8: Thực hiện phép tính
a.(2x + 3) (x – 5) + 2x(3 – x) + x – 10
b.(6x^3y^2 – 8x^2y^3 + 4x^3y^3) : 2x^2y^2

Comments ( 1 )

  1. a/ (2x+3)(x-5)+2x(3-x)+x-10
    = 2x^2-7x-15+6x-2x^2+x-10
    = -x-25 = -(x+25)
    b/ (6x^3y^2-8x^2y^3+4x^3y^3):2x^2y^2
    = 3x-4y+2xy

Leave a reply

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

About Nhi