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

Toán Lớp 8: $(xy)^{3}$-3$(y-x)^{2}$+3(x-y)-1

Home/ Toán Lớp 8: $(xy)^{3}$-3$(y-x)^{2}$+3(x-y)-1

Toán Lớp 8: $(xy)^{3}$-3$(y-x)^{2}$+3(x-y)-1

Tháng Chín 11, 2022 Toán học 1 Comment 0 views

Toán Lớp 8: $(xy)^{3}$-3$(y-x)^{2}$+3(x-y)-1

Comments ( 1 )

  1. hongocha12
    hongocha12
    11 Tháng Chín, 2022 at 3:14 chiều
    Reply
    (xy)^3-3(y-x)^2+3(x-y)-1
    =x^3y^3-3(y^2-2xy+x^2)+3x-3y-1
    =x^3y^3-3y^2+6xy-3x^2+3x-3y-1

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

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