\(\sqrt{3x+4}\) - \(\sqrt{5-x}\) + 3x2-8x-19=0
giải phương trình sau:
a) \(4x^2+\left(8x-4\right).\sqrt{x}-1=3x+2\sqrt{2x^2+5x-3}\)
b) \(8x^3-36x^2+\left(1-3x\right)\sqrt{3x-2}-3\sqrt{3x-2}+63x-32=0\)
c) \(2\sqrt[3]{3x-2}-3\sqrt{6-5x}+16=0\)
d) \(\sqrt[3]{x+6}-2\sqrt{x-1}=4-x^2\)
giải các phương trình sau:
\(1,\sqrt{18x}-6\sqrt{\dfrac{2x}{9}}=3-\sqrt{\dfrac{x}{2}}\)
\(2,\sqrt{3x}-2\sqrt{12x}+\dfrac{1}{3}\sqrt{27x}=-4\)
3, \(3\sqrt{2x}+5\sqrt{8x}-20-\sqrt{18}=0\)
\(4,\sqrt{16x+16}-\sqrt{9x+9}=1\)
\(5,\sqrt{4\left(1-3x\right)}+\sqrt{9\left(1-3x\right)}=10\)
\(6,\dfrac{2}{3}\sqrt{x-3}+\dfrac{1}{6}\sqrt{x-3}-\sqrt{x-3}=\dfrac{-2}{3}\)
\(\sqrt{3x^2-7x+3}-\sqrt{x^2-2}=\) = \(\sqrt{3x^2-5x-1}-\sqrt{x^2-3x+4}\)
\(3x^3-17x^2-8x+9+\sqrt{3x-2}-\sqrt{7-x}\) = 0
GIẢI PHƯƠNG TRÌNH
giải pt
\(3x^3-17x^2-8x+9+\sqrt{3x-2}-\sqrt{7-x}=0 \)
Giải phương trình :\(x^2+8x+16-2\left(x+1\right).\sqrt{2x+5}-2\sqrt{3x^2+24x+21}=0\)
\(\left(1\right)\sqrt{x^2-9}-2\sqrt{x-3}=0\)
\(\left(2\right)\sqrt{4x+1}-\sqrt{3x-4}=1\)
\(\left(3\right)\sqrt{x^2-10x+25}=5-x\)
\(\left(4\right)\sqrt{x^2-8x+16}=x+2\)
rút gọn các biểu thức sau với x ≥ 0
a) \(2\sqrt{3x}-4\sqrt{3x}+27-3\sqrt{3x}\)
b) \(3\sqrt{2x}-5\sqrt{8x}+7\sqrt{18x}+28\)
\(\sqrt{2X^2+3X-2}-3\sqrt{X+6}=4-\sqrt{2X^2+11X-6}+3\sqrt{X+2}\)
\(\sqrt{3X^2-7X+3}-\sqrt{X^2-2}=\sqrt{3X^2-5X-1}-\sqrt{X^2-3X+4}\)
\(8x^2+\sqrt{3x^2+6x+5}=74-\sqrt{36x-5}\)