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: X^2 + 6x + 9 X-3 3-x x-3

Toán Lớp 8: X^2 + 6x + 9
X-3 3-x x-3

Comments ( 2 )

  1. $\frac{x^2}{x-3}$ $+$ $\frac{6x}{3-x}$ $+$ $\frac{9}{x-3}$
    $=$ $\frac{x^2}{x-3}$ $-$ $\frac{6x}{x-3}$ $+$ $\frac{9}{x-3}$
    $=$ $\frac{x^2-6x+9}{x-3}$
    $=$ $\frac{(x-3)^2}{x-3}$
    $=$ $x-3$
    $Chúc$ $bạn$ $học$ $tốt!$

  2. @Bao
    x^2/(x-3)+(6x)/(3-x)+9/(x-3)
    =x^2/(x-3)+(-6x)/(x-3)+9/(x-3)
    =(x^2-6x+9)/(x-3)
    =(x-3)^2/(x-3)
    =x-3
     

Leave a reply

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