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=(x-2)(x^2+2x+4)-(x^3+x^2)-(3-x)(3+x)

Toán Lớp 8: B=(x-2)(x^2+2x+4)-(x^3+x^2)-(3-x)(3+x)

Comments ( 2 )

  1. B=(x-2).($x^{2}$+2x+4)-($x^{3}$-$x^{2}$)-(3-x)(3+x) =$x^{3}$ -8-$x^{3}$-$x^{2}$-9-$x^{2}$ =-17

  2. Giải đáp:
    B=-17
    Lời giải và giải thích chi tiết:
    B=(x-2)(x^2+2x+4)-(x^3+x^2)-(3-x)(3+x)
    B=x^3-8-x^3-x^2-9+x^2
    B=(x^3-x^3)+(x^2-x^2)-(8+9)
    B=-17

Leave a reply

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