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: Rút gọn biểu thức M =(x+3)^2-(4x+1)-x (2+x) Giải giúp em vs ạ

Toán Lớp 8: Rút gọn biểu thức M =(x+3)^2-(4x+1)-x (2+x)
Giải giúp em vs ạ

Comments ( 2 )

  1. Bạn tham khảo
    M =(x+3)^2-(4x+1)-x (2+x)
    ->M=x^2+6x+9-4x-1-2x-x^2
    ->M=x^2(1-1)+x(6-4-2)+(9-1)
    ->M=0.x^2+0.x+8
    ->M=8
    ____________________________________
    M =(x+3)^2-(4x+1)-x (2+x)
    ->M=x^2+6x+9-4x-1-2x-x^2
    ->M=(x^2-x^2)+(6x-4x-2x)+(9-1)
    ->M=8

  2. M=(x+3)^2-(4x+1)-x(2+x)
    M=x^2+2.x.3+3^2-4x-1-(2x+x^2)
    M=x^3+6x+9-4x-1-2x-x^2
    M=(x^2-x^2)+(6x-4x-2x)+(9-1)
    M=8
     

Leave a reply

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

About Chi Mai