[Toán 9] Pt nghiệm nguyên

H

huytrandinh

[TEX]3X^{2}=6Y^{2}+8Y+3[/TEX]
[TEX]=>2Y^{2}+8Y-10=0<=>2(Y+5)(Y-1)=0=>Y=-5,Y=1[/TEX]
[TEX].Y=-5=>X^{2}=\frac{143}{3}=>VN[/TEX]
[TEX].Y=1=>X^{2}=\frac{17}{3}=>VN[/TEX]
 
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