tìm x
2 \(\sqrt{16x-16}\)+\(\sqrt{49x-49}\) \(-\) \(\sqrt{x-1}\) =46
\(\sqrt{81x-81}+\sqrt{16x-16}+\sqrt{9x-9}+\sqrt{x-1}=\)
1.Tính:
(\(\sqrt{5-2\sqrt{6}+}\sqrt{2}\))\(\sqrt{3}\)
\(\dfrac{8\sqrt{41}}{\sqrt{45+4\sqrt{41}+\sqrt{45+4\sqrt{41}}}}\)
Giúp mik nhé các bạn!:))Giải hộ mik trong hôm nay nhé!:))))
Tìm x thuộc R để M= \(\dfrac{1}{\sqrt{x}+1}-\dfrac{1-\sqrt{x}}{\sqrt{x+1}}\)có g.trị nguyên
mọi người giúp em với ạ ..................
\(\sqrt[]{x-2}=3\)
\(\sqrt{4x^2}+4x+1=3\)
\(3\sqrt{9x-9}-\sqrt{4x}-4=\sqrt{x-1}+24\)
giúp mk với ạ
\(\sqrt{25x+5}+\sqrt{45}\sqrt{20x+4}-\sqrt{\dfrac{5x+1}{16}}=\dfrac{27\sqrt{5}}{4}\)
tìm x
\(\left(\dfrac{2x+1}{\sqrt{x^3-1}}-\dfrac{\sqrt{x}}{x+\sqrt{x+1}}\right)\left(\dfrac{1+\sqrt{x^3}}{1+\sqrt{x}}-\sqrt{x}\right)\)
\(\dfrac{\sqrt{x-2\sqrt{x-1}+}\sqrt{x+2\sqrt{x-1}}}{\sqrt{\dfrac{1}{x^2}-\dfrac{2}{x}+1}}\)
\(\left(\dfrac{x\sqrt{x}+y\sqrt{y}}{\sqrt{x}+\sqrt{y}}-\sqrt{xy}\right):\left(x-y\right)+\dfrac{2\sqrt{y}}{\sqrt{x}+\sqrt{y}}\)
\(\left(\dfrac{\sqrt{x}}{3+\sqrt{x}}+\dfrac{x+9}{9-x}\right):\left(\dfrac{3\sqrt{x}+1}{x-3\sqrt{x}}-\dfrac{1}{\sqrt{x}}\right)\)
Mí bạn giải giúp mik bài này nhé!:))))))))))))))))))))))))))))))ARIGATO MÍ BẠN NHIW!!!!!!!!!!:)))))))))))))))))))))))))))))))))
Giải phương trình:
a. \(\sqrt{4-5x}=12\)
b. \(10-2\sqrt{2x+1}=4\)
c. \(5-\sqrt{x-1}=7\)
d. \(\sqrt{10+\sqrt{3x}}=2+\sqrt{6}\)
e. \(\sqrt{x+1}+10=2\sqrt{x+1}-2\)
f. \(\sqrt{16x+32}-5\sqrt{x+2}=-2\)
Bài 1 : Rút gọn các bt sau :
b, B=\(\dfrac{x-\sqrt{x}}{1-\sqrt{x}}\) - \(\dfrac{x\sqrt{x}}{\sqrt{x}}\)
c, C= \(\dfrac{x+2\sqrt{x}}{\sqrt{x}-x}\) - \(\dfrac{x\sqrt{x}}{\sqrt{x}+1}\)
d, D= \(\dfrac{x+2\sqrt{x}}{\sqrt{x}+2}\)+ \(\dfrac{5\sqrt{x}-2}{x-4}\) ( x> 0 ; x#4)
e, E= \(\dfrac{\sqrt{x}}{\sqrt{x}-3}\)+ \(\dfrac{\sqrt{x}-24}{x-9}\) ( x>0; x#9)
f, F= \(\dfrac{3}{\sqrt{x}+5}\) + \(\dfrac{20-2\sqrt{x}}{x-25}\)( x>0; x#25)
Mấy bạn làm giúp mk vs ... thanks trc ạ