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: 1.Phân tích a)4x^2-y^2-4-4y b)2x^2-2xy+3x-3y

Toán Lớp 8: 1.Phân tích
a)4x^2-y^2-4-4y
b)2x^2-2xy+3x-3y

Comments ( 1 )

  1. Lời giải và giải thích chi tiết:
    a)
    4x^2 – y^2 – 4 – 4y
    = 4x^2 – (y^2 + 4y + 4)
    = (2x)^2 – (y + 2)^2
    = (2x – y – 2)(2x + y + 2)
    b)
    2x^2 – 2xy + 3x – 3y
    = 2x(x – y) + 3(x – y)
    = (2x + 3)(x – y)

Leave a reply

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

About Ái Linh