Toán Lớp 8: ( $x^{5}$ – $x^{2}$ – 3 $x^{4}$ + 3x + 5 $x^{3}$ – 5) : (5 + $x^{2}$ – 3x)
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Toán Lớp 8: ( $x^{5}$ – $x^{2}$ – 3 $x^{4}$ + 3x + 5 $x^{3}$ – 5) : (5 + $x^{2}$ – 3x)
Comments ( 2 )
=(x^5-3x^4+5x^3-x^2+3x-5):(x^2-3x+5)
Thực hiện phép chia theo cột dọc:
$\begin{array}{c|c}\qquad \qquad \quad x^5-3x^4+5x^3-x^2+3x-5&x^2-3x+5\\\hline x^5-3x^4+5x^3&x^3-1\\\text{______________________}\\-x^2+3x-5\\-x^2+3x-5\\\text{______________________}\\0\end{array}$