Chương 3: PHƯƠNG TRÌNH, HỆ PHƯƠNG TRÌNH
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giải hệ phương trình:
1, \(\left\{{}\begin{matrix}x^3+2y^2=x^2y+2xy\\2\sqrt{x^2-2y-1}+\sqrt[3]{y^3-14}=x-2\end{matrix}\right.\)
2, \(\left\{{}\begin{matrix}2\sqrt{x+y^2+y+3}-3\sqrt{y}=\sqrt{x+2}\\y^3+y^2-3y-5=3x-3\sqrt[3]{x}+2\end{matrix}\right.\)
3, \(\left\{{}\begin{matrix}\left(x-2\right)\left(2y-1\right)=x^3+20y-28\\2\left(\sqrt{x+2y}+y\right)=x^2+x\end{matrix}\right.\)
Giải hệ phương trình sau \(\left\{{}\begin{matrix}x^3+2y^2=x^2y+2xy\\2\sqrt{x^2-2y-1}+\sqrt[3]{y^3-14}=x-2\end{matrix}\right.\)
giải hệ : \(\left\{{}\begin{matrix}x^3+2y^2-2xy=x^2y\\2+căn3\sqrt[]{y^3-14}=x-2\sqrt{x^2-2y-1}\end{matrix}\right.\)
giải giúp mik bt này vs mn!
1)left{{}begin{matrix}2x^2+y^2+x3left(xy+1right)+2ydfrac{2}{3+sqrt{2x-y}}+dfrac{2}{3+sqrt{4-5x}}dfrac{9}{2x-y+9}end{matrix}right.
2)left{{}begin{matrix}left(x+3y+1right)sqrt{2xy+2y}yleft(3x+4y+3right)left(sqrt{x+3}-sqrt{2y-2}right)left(x-3+sqrt{x^2+x+2y-4}right)4end{matrix}right.
3)left{{}begin{matrix}x-dfrac{1}{x}y-dfrac{1}{y}2yx^3+1end{matrix}right.
4)left{{}begin{matrix}sqrt{2x-3}left(y^2+2011right)left(5-yright)+sqrt{y}yleft(y-x+2right)3x+3end{matrix}right.
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giải giúp mik bt này vs mn!
1)\(\left\{{}\begin{matrix}2x^2+y^2+x=3\left(xy+1\right)+2y\\\dfrac{2}{3+\sqrt{2x-y}}+\dfrac{2}{3+\sqrt{4-5x}}=\dfrac{9}{2x-y+9}\end{matrix}\right.\)
2)\(\left\{{}\begin{matrix}\left(x+3y+1\right)\sqrt{2xy+2y}=y\left(3x+4y+3\right)\\\left(\sqrt{x+3}-\sqrt{2y-2}\right)\left(x-3+\sqrt{x^2+x+2y-4}\right)=4\end{matrix}\right.\)
3)\(\left\{{}\begin{matrix}x-\dfrac{1}{x}=y-\dfrac{1}{y}\\2y=x^3+1\end{matrix}\right.\)
4)\(\left\{{}\begin{matrix}\sqrt{2x-3}=\left(y^2+2011\right)\left(5-y\right)+\sqrt{y}\\y\left(y-x+2\right)=3x+3\end{matrix}\right.\)
5)\(\left\{{}\begin{matrix}x^3+2x^2=x^2y+2xy\\2\sqrt{x^2-2y-1}+\sqrt[3]{y^3-14=x-2}\end{matrix}\right.\)
Giải hệ pta)\(\left\{{}\begin{matrix}\sqrt{4x+10y}-\sqrt{2x+2y}=4\\x+2y+\dfrac{2\sqrt{2x^2+7xy+5y^2}}{3}=24\end{matrix}\right.\)b) \(\left\{{}\begin{matrix}x^3+3y^3-2xy^2=1\\x^4+6y^4=\left(x+2y.1\right)\end{matrix}\right.\)
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giúp mik giải bài hệ pt vs ạ!
1,left{{}begin{matrix}x^2+y^2+dfrac{2xy}{x+y}1sqrt{x+y}x^2-yend{matrix}right.
2,left{{}begin{matrix}2x^3+xy^2+xy^3+4x^2y+2ysqrt{4x^2+x+6}-5sqrt{1+2y}1-4yend{matrix}right.
3,left{{}begin{matrix}2x^2+sqrt{2}xleft(x+yright)y+sqrt{x+y}sqrt{x-1}+xysqrt{y^2+21}end{matrix}right.
4,left{{}begin{matrix}sqrt{9y^2+left(2y+3right)left(y-xright)}+4sqrt{xy}7xleft(2y-1right)sqrt{1+x}+left(2y+1right)sqrt{1-x}2yend{matrix}right.
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giúp mik giải bài hệ pt vs ạ!
1,\(\left\{{}\begin{matrix}x^2+y^2+\dfrac{2xy}{x+y}=1\\\sqrt{x+y}=x^2-y\end{matrix}\right.\)
2,\(\left\{{}\begin{matrix}2x^3+xy^2+x=y^3+4x^2y+2y\\\sqrt{4x^2+x+6}-5\sqrt{1+2y}=1-4y\end{matrix}\right.\)
3,\(\left\{{}\begin{matrix}2x^2+\sqrt{2}x=\left(x+y\right)y+\sqrt{x+y}\\\sqrt{x-1}+xy=\sqrt{y^2+21}\end{matrix}\right.\)
4,\(\left\{{}\begin{matrix}\sqrt{9y^2+\left(2y+3\right)\left(y-x\right)}+4\sqrt{xy}=7x\\\left(2y-1\right)\sqrt{1+x}+\left(2y+1\right)\sqrt{1-x}=2y\end{matrix}\right.\)
giải hệ phương trình
\(\left\{{}\begin{matrix}\left(x+3y+1\right)\sqrt{2xy+2y}=y\left(3x+4y+3\right)\\\left(\sqrt{x-3}-\sqrt{2y-2}\right)\left(x-3+\sqrt{x^2+x+2y-4}\right)=4\end{matrix}\right.\)
giải hệ phương trình \(\left\{{}\begin{matrix}x^3-12y^3+xy\left(16y-7x\right)=0\\\sqrt{x-2y}+\sqrt{x+2y}=2\end{matrix}\right.\)
giải hệ phương trình:
1, \(\left\{{}\begin{matrix}\sqrt{3+2x^2y-x^4y^2}+x^2\left(1-2x^2\right)=y^4\\1+\sqrt{1+\left(x-y\right)^2}=-x^2\left(x^4+1-2x^2-2xy^2\right)\end{matrix}\right.\)
2, \(\left\{{}\begin{matrix}\sqrt{x-1}+\sqrt{x}\left(3\sqrt{x}-y\right)+x\sqrt{x}=3y+\sqrt{y-1}\\3xy^2+4=4x^2+2y+x\end{matrix}\right.\)