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

Toán Lớp 8: Cho ví dụ 3 đơn thức bậc 4 F(x), G(x),H(x). Tính F(x), +G(x)+G(x)

Toán Lớp 8: Cho ví dụ 3 đơn thức bậc 4 F(x), G(x),H(x). Tính F(x),
+G(x)+G(x)

Comments ( 1 )

  1. Ví dụ:
    $F(x)=x^4+3x^3+2x^2+x+1$
    $G(x)=2x^4-x^2-2$
    $H(x)=-x^4+x^3-x-5$
    $F(x)+G(x)+H(x)=(x^4+2x^4-x^4)+(3x^3+x^3)+(2x^2-x^2)+(x-x)+(1-2-5)$
    $=2x^4+4x^3+x^2-6$
     

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