Giải phương trình:
1) \(3x^2+4x-3=4x\sqrt{4x-3}\)
2) \(\sqrt{x^2+2x}+\sqrt{x+2}=\sqrt{x}+\sqrt{x^2+2x-2}\)
3) \(\sqrt{3x+8}-\sqrt{3x+5}=\sqrt{5x-4}-\sqrt{5x-7}\)
4) \(\sqrt{7-x^2+x\sqrt{x+5}}=\sqrt{3-2x-x^2}\)
x4 + 4=5x(x2 - 2)
b/x4 + (x - 1)4 = 97
c/x4 + 4x3 + x2 - 4x +1 = 0
d/ 3x4 + 10x3 - 3x2 - 10x +3 = 0
Giải gấp mình cần lắm. XIN CHÂN THÀNH CẢM ƠN
Giải phương trình: \(2x^2-3x+7-3\sqrt[3]{4x+4}=0\)
\(a,2x^2-9x+3+\sqrt{3x^2-7x+1}=0\)
b)\(\sqrt{x+2}+\sqrt{3-x}=x^3+x^2-4x-1\)
c)\(\text{4x^3-9x^2+7x-(3x-1)\sqrt{3x-2}=0}\)
d)\(2\sqrt{x-1}+\sqrt{5x-1}=x^2+1\)
e)\(\sqrt{x+2}+\sqrt{5x+6}+2\sqrt{8x+9}=4x^2\)
f)\(3x^2-x+3=\sqrt{3x+1}+\sqrt{5x+4}\)
a) 3x3 +2x2 - 2x -1 =0
b) x4 + 4x3 + 3x2 + 2x -1 =0
c) x3 - 6x2 + 7x + 2 =0
d) 2x4 + x3 - 8x2 - x + 6 =0
giúp mk vs
Ai giải hộ mk cái hệ với
: x^3 - y^3 + 3x -12y + 7 = 3x^2 - 6y^2 (1)
√(x+2) + √(4-y) = x^3 + y^2 - 4x - 2y (2)
√ là căn
Giải phương trình:
a) x3+4x2+x-6=0
b) x3-3x2+4=0
c)x4+2x3+2x2-2x-3=0
1)2x(25x-4)-(5x-2)(5x+1)=8 / 5)\(2\left(x-2\right)-3\left(3x-1\right)=\left(x-3\right)\)
2)x(4x-3)-(2x-2)(2x-1)=5 / 6)\(\frac{2}{x+1}-\frac{1}{x-2}=\frac{3x-11}{\left(x+1\right)\left(x-2\right)}\)
3)\(\frac{5}{2x+3}+\frac{3}{9-x^2}=\frac{8}{7\left(x=3\right)}\) / 7)\(\frac{5x-2}{6}+\frac{3-4x}{2}=2-\frac{x+7}{3}\)
4)\(\frac{2}{3\left(x-2\right)}+\frac{5}{12-3x^2}=\frac{3}{4\left(x+2\right)}\) / 8)\(\frac{2}{x+1}-\frac{1}{x-2}=\frac{3x-11}{\left(x+1\right)\left(x-2\right)}\)
Giải pt
a) \(2x^2+\sqrt{x^2-5x-6}=10x+15\)
b) \(5\sqrt{3x^2-4x-2}-6x^2+8x+7=0\)
c) \(x^2+\sqrt{2x^2+4x+3}=6-2x\)
d) \(2\sqrt{\frac{3x-1}{x}}=\frac{x}{3x-1}+1\)
e) \(\sqrt{\frac{24x-4}{x}}=\frac{x}{6x-1}+1\)
f) \(\sqrt{\frac{2x-1}{x}}+1+\sqrt{\frac{x}{2x-1}}=\frac{3x}{2x-1}\)