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17 tháng 4 2021 lúc 22:27
Giải pt:
\(4\left(x+1\right)\left(\sqrt{x+3}+\sqrt{2-x}\right)=-x^2+12x+13\)
Giai he pt
\(\left(1-y\right)\sqrt{x-y}+x=\left(x-y-1\right)\sqrt{y}\)
\(2y^2-3x+6y+1=2\sqrt{x-2y}-\sqrt{4x-5y-3}\)
giai pt sau
\(\sqrt{3x-1}-\sqrt{x+2}.\sqrt{3x^2+7x+2}+4=4x-2\)
\(x^2-5x+3.\sqrt{2x-1}=2.\sqrt{14-2x}+5\)
\(\left(x+1\right)\left(x+4\right)-3\sqrt{x^2+5x+2}=6\)
\(4x^2+12x\sqrt{x+1}=27\left(x+1\right)\)\(\)
Giải phương trình trên!
Giải pt, hệ pt
a\(\left(\sqrt{x+6}-\sqrt{x-2}\right)\left(1+\sqrt{x^2+4x-12}\right)\)=8
b \(\hept{\begin{cases}x^2+y^2+x+y=18\\x^2+x-y=10\end{cases}}\)
c\(\hept{\begin{cases}x^2+y^2+3=4x\\x^3+12x+y^3=6x^2+9\end{cases}}\)
Giai pt
1) \(\left(x+5\right)\left(2-x\right)=3\sqrt{x^2+3x}\)
2) \(\frac{x}{x+1}-2\sqrt{\frac{x+1}{x}}-3=0\)
3) \(x^2+\sqrt{2x^2+4x+3}=6-2x\)
4) \(x^2+\sqrt{x+5}=5\)
5) \(x^3+4x-\left(2x+7\right)\sqrt{2x+3}=0\)
1. Tinh left(3-sqrt{2}right).sqrt{7+4sqrt{3}}left(sqrt{3}+sqrt{5}right).sqrt{7-2sqrt{10}}left(2+sqrt{5}right).sqrt{9-4sqrt{5}}left(sqrt{6}+sqrt{10}right)sqrt{4-sqrt{15}}sqrt{2}.left(sqrt{8}-sqrt{32}+3sqrt{18}right)sqrt{2}.left(sqrt{2}-sqrt{3-sqrt{5}}right)sqrt{3}-sqrt{2}.sqrt{left(sqrt{3}+sqrt{2}right)^2}left(sqrt{2}-sqrt{3+sqrt{5}}right).sqrt{2}+2sqrt{5}2. Giai ptsqrt{4x^2-4x+1}5sqrt{4x-12}+frac{1}{3}.sqrt{9x-27}4+sqrt{x-3}sqrt{4x+8}-sqrt{9x+18}-2sqrt{x+2}21left(3-2sqrt{x}right).left(2+3sqrt{...
Đọc tiếp
1. Tinh
\(\left(3-\sqrt{2}\right).\sqrt{7+4\sqrt{3}}\)
\(\left(\sqrt{3}+\sqrt{5}\right).\sqrt{7-2\sqrt{10}}\)
\(\left(2+\sqrt{5}\right).\sqrt{9-4\sqrt{5}}\)
\(\left(\sqrt{6}+\sqrt{10}\right)\sqrt{4-\sqrt{15}}\)
\(\sqrt{2}.\left(\sqrt{8}-\sqrt{32}+3\sqrt{18}\right)\)
\(\sqrt{2}.\left(\sqrt{2}-\sqrt{3-\sqrt{5}}\right)\)
\(\sqrt{3}-\sqrt{2}.\sqrt{\left(\sqrt{3}+\sqrt{2}\right)^2}\)
\(\left(\sqrt{2}-\sqrt{3+\sqrt{5}}\right).\sqrt{2}+2\sqrt{5}\)
2. Giai pt
\(\sqrt{4x^2-4x+1}=5\)
\(\sqrt{4x-12}+\frac{1}{3}.\sqrt{9x-27}=4+\sqrt{x-3}\)
\(\sqrt{4x+8}-\sqrt{9x+18}-2\sqrt{x+2}=21\)
\(\left(3-2\sqrt{x}\right).\left(2+3\sqrt{x}\right)=16-6x\)
\(\sqrt{x^2-4}-\sqrt{x-2}=0\)
Giải phương trình:\(\sqrt{2x^2-4x-2}+\left(x-1\right)^2\sqrt{12x-4}=\left(8-x\right)\sqrt{3-x}\)
giải pt \(\sqrt{3+x}+\sqrt{6-x}=\sqrt{4x^2-12x+27}\)