Các câu hỏi tương tự
e)\(\left(x^4+x^2+1\right)^2-38\left(x^4+x^2+1\right)+105=0\)
f)\(\left(x^2+x\right)\left(x^2+x+1\right)=42\)
g)\(2\left(x^2-2x\right)+\sqrt{x^2-2x-3}-9=0\)
Mn giúp mình vs1, x^3-6x^2+10x-402, x^3+2x^2+2sqrt{2}x+2sqrt{2}03, x^4+x^2-sqrt{2}x+20
4, x^4+5x^3-12x^2+5x+105, left(x+5right)left(2x+12right)left(2x+20right)left(x+12right)3x^26, left(x^2-5x+1right)left(x^2-4right)6left(x-1right)^27, x^4-9x^3+16x^2+18x+40
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Mn giúp mình vs
1, \(x^3-6x^2+10x-4=0\)
2, \(x^3+2x^2+2\sqrt{2}x+2\sqrt{2}=0\)
3, \(x^4+x^2-\sqrt{2}x+2=0
\)
4, \(x^4+5x^3-12x^2+5x+1=0\)
5, \(\left(x+5\right)\left(2x+12\right)\left(2x+20\right)\left(x+12\right)=3x^2\)
6, \(\left(x^2-5x+1\right)\left(x^2-4\right)=6\left(x-1\right)^2\)
7, \(x^4-9x^3+16x^2+18x+4=0\)
25 tháng 11 2023 lúc 20:36
Giải hpt sau:a)left{{}begin{matrix}2left(x^2-2xright)+sqrt{y+1}03left(x^2-2xright)-2sqrt{y+1}+70end{matrix}right.b)left{{}begin{matrix}5left|x-1right|-3left|y+2right|72sqrt{4x^2-8x+4}+5sqrt{y^2+4y+4}13end{matrix}right.c)left{{}begin{matrix}dfrac{3x}{x+1}-dfrac{2}{y+4}4dfrac{2x}{x+1}-dfrac{5}{y+4}9end{matrix}right.d)left{{}begin{matrix}dfrac{x+1}{x-1}+dfrac{3y}{y+2}7dfrac{2}{x-1}-dfrac{5}{y+2}4end{matrix}right.
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Giải hpt sau:
a)\(\left\{{}\begin{matrix}2\left(x^2-2x\right)+\sqrt{y+1}=0\\3\left(x^2-2x\right)-2\sqrt{y+1}+7=0\end{matrix}\right.\)
b)\(\left\{{}\begin{matrix}5\left|x-1\right|-3\left|y+2\right|=7\\2\sqrt{4x^2-8x+4}+5\sqrt{y^2+4y+4}=13\end{matrix}\right.\)
c)\(\left\{{}\begin{matrix}\dfrac{3x}{x+1}-\dfrac{2}{y+4}=4\\\dfrac{2x}{x+1}-\dfrac{5}{y+4}=9\end{matrix}\right.\)
d)\(\left\{{}\begin{matrix}\dfrac{x+1}{x-1}+\dfrac{3y}{y+2}=7\\\dfrac{2}{x-1}-\dfrac{5}{y+2}=4\end{matrix}\right.\)
Giải các phương trình sau:
a \(\left(X^2+2x\right)^2-3\left(x^2+2x\right)+2=0\)
b \(\left(x^2+x\right)\left(x^2+x+1\right)-6=0\)
c \(x^4-4x^3+x+3=0\)
d \(x^4-2x^3+x=2\)
a \(\left(x-1\right)^2-\left(y+1\right)^2=0\)
\(x+3y-5=0\)
b \(xy-2x-y+2=0\)
3x+y=8
c \(\left(x+y\right)^2-4\left(x+y\right)=12\)
\(\left(x-y\right)^2-2\left(x-y\right)=3\)
d \(2x-y=1\)
\(2x^2+xy-y^2-3y=-1\)
giải các phương trình cô tỉ sau
1) \(\sqrt{x+1}-\sqrt{\frac{x+1}{x}}-1=0\)
2) \(\left(x^2+2\right)^2+4\left(x+1\right)^3+\sqrt{x^2+2x+5}=\left(2x-1\right)^3+2\)
3) \(\sqrt{1+\sqrt{2x-x^2}}+\sqrt{1-\sqrt{2x-x^2}}=2\left(x-1\right)^4\left(2x^2-4x+1\right)\)
Ai dậy r giúp vs :33 1 câu cx đc nhé :v toàn giải pt hết nhé1) 4x^2+left(8x-4right)sqrt{x}-13x+2sqrt{2x^2+5x-3}.2) left(5x+8right)sqrt{2x-1}+7xsqrt{x+3}9x+18-left(x+26right)sqrt{x-1}3) sqrt[3]{3x+1}+sqrt[3]{5-x}+sqrt[3]{2x-9}-sqrt[3]{4x-3}04) left(x+17right)sqrt{4-x}+left(20-xright)sqrt{x+1}-9sqrt{4-x}.sqrt{x+1}36
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Ai dậy r giúp vs :33 1 câu cx đc nhé :v toàn giải pt hết nhé
1) \(4x^2+\left(8x-4\right)\sqrt{x}-1=3x+2\sqrt{2x^2+5x-3}.\)
2) \(\left(5x+8\right)\sqrt{2x-1}+7x\sqrt{x+3}=9x+18-\left(x+26\right)\sqrt{x-1}\)
3) \(\sqrt[3]{3x+1}+\sqrt[3]{5-x}+\sqrt[3]{2x-9}-\sqrt[3]{4x-3}=0\)
4) \(\left(x+17\right)\sqrt{4-x}+\left(20-x\right)\sqrt{x+1}-9\sqrt{4-x}.\sqrt{x+1}=36\)
1,\(\left(x+\sqrt{x^2+1}\right)\left(y+\sqrt{y^2+4}\right)=2\). CMR: 2x +y =0
2,\(\left(x+\sqrt{x^2+9}\right)\left(y+\sqrt{y^2}+4\right)=6\). CMR 2x+3y=0
\(\left(1\right)\sqrt{x^2-9}-2\sqrt{x-3}=0\)
\(\left(2\right)\sqrt{4x+1}-\sqrt{3x-4}=1\)
\(\left(3\right)\sqrt{x^2-10x+25}=5-x\)
\(\left(4\right)\sqrt{x^2-8x+16}=x+2\)