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: Thực hiện phép tính (8x-8x^3-10x^2+3x^4-5):(3x^2-2x+1)

Toán Lớp 8: Thực hiện phép tính (8x-8x^3-10x^2+3x^4-5):(3x^2-2x+1)

Comments ( 1 )

  1. Giải đáp:
    (8x-8x^3-10x^2+3x^4-5):(3x^2-2x+1)
    = \frac{8x-8x^3-10x^2+3x^4-5}{3x^2-2x+1}
    = \frac{-2x+10x-2x^3-6x^3+x^2+4x^2-15x^2+3x^4-5}{3x^2-2x+1}
    = \frac{-2x(3x^2-2x+1)-5(3x^2-2x+1)+x^2(3x^2-2x+1)}{3x^2-2x+1}
    = \frac{(3x^2-2x+1)(x^2-2x-5)}{3x^2-2x+1}
    = x^2-2x-5

Leave a reply

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