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: B= 2.(x ²/y ² + x ²/y ²) – (x/y + x/y) + 1

Toán Lớp 8: B= 2.(x ²/y ² + x ²/y ²) – (x/y + x/y) + 1

Comments ( 1 )

  1. B=2.(x^2/y^2+x^2/y^2)-(x/y+x/y)+1
    =2.(2x^2)/y^2-(2x)/y
    =(4x^2)/y^2-(2x)/y
    =(2x)/y((2x)/y-1)
     

Leave a reply

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