Toán 8

H

huytrandinh

[TEX]dk x\neq 0[/TEX]
[TEX]<=>3x^{2}-4-(3x+1)-3x^{2}=0[/TEX]
[TEX]<=>x=-5/3[/TEX]
[TEX].\frac{3x^{5}-4x^{3}}{x^{3}}=3x^{2}-4[/TEX]
[TEX].\frac{(3x+1)^{2}}{3x+1}=3x+1[/TEX]
[TEX].\frac{3x^{7}}{x^{5}}=3x^{2}[/TEX]
 
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