Toán Lớp 8: phân thức 5x/2x+4 xác định khi
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Toán Lớp 8: phân thức 5x/2x+4 xác định khi
Comments ( 2 )
\frac{{5x}}{{2x + 4}}\\
DKXD:\\
2x + 4 \ne 0\\
\Rightarrow x \ne – 2\\
\Rightarrow \frac{{5x}}{{2x + 4}}\,\,xac\,\,dinh\,\,khi\,\,x \ne – 2
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