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: Phân tích: `x^2 – 4x + 5` Nêu cách tìm nghiệm.

Toán Lớp 8: Phân tích: x^2 – 4x + 5
Nêu cách tìm nghiệm.

Comments ( 1 )

  1. $x^{2} – 4x + 5$
    = $x^{2} – 5x + x + 5$
    = $(x^{2} – x) – (5x – 5)$
    = $x.(x-1) – 5.(x – 1)$
    = $(x – 1).(x – 5)$

Leave a reply

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

About Thu Ánh