Các câu hỏi tương tự
tìm x:
a) \(\left(2x+3\right)^2=\frac{9}{121}\)
b)\(\left(3x-1\right)^3=-\frac{8}{27}\)
tìm x, biết :
a) (2x + 3)2 = \(\frac{9}{121}\)
b) (3x - 1)3 = -\(\frac{8}{27}\)
Tìm x :
a, (2x +3)2= 9/121
B, ( 3x - 1 )3 = -8/27
mk sẽ tick cho
A)(2X+3)^2=9/121
B)(3X-1)^3=-8/27
1. Tìm x, biết:a) frac{x}{-15}frac{-60}{x} b) frac{-2}{x}frac{-x}{frac{8}{25}}c) 3,8:left(2xright)frac{1}{4}:2frac{2}{3}d) 1frac{1}{3}:0,8frac{2}{3}:left(0,1xright)2. Tìm x,y, biết: frac{x}{12}frac{y}{24}và x.y983. Tìm x, biết:a) left(2x+3right)^2frac{9}{121}b) left(3x-1right)^3frac{-8}{27}
Đọc tiếp
1. Tìm x, biết:
a) \(\frac{x}{-15}=\frac{-60}{x}\)
b) \(\frac{-2}{x}=\frac{-x}{\frac{8}{25}}\)
c) \(3,8:\left(2x\right)=\frac{1}{4}:2\frac{2}{3}\)
d) \(1\frac{1}{3}:0,8=\frac{2}{3}:\left(0,1x\right)\)
2. Tìm x,y, biết: \(\frac{x}{12}=\frac{y}{24}\)và x.y=98
3. Tìm x, biết:
a) \(\left(2x+3\right)^2=\frac{9}{121}\)
b) \(\left(3x-1\right)^3=\frac{-8}{27}\)
Tìm x :
a ) \(x^{10}\)= \(25x^8\)
b ) \(\left(2x+3\right)^2\)= \(\frac{9}{121}\)
c ) \(\left(3x-1\right)^3\)= \(-\frac{8}{27}\)
Tìm x :
a) ( 2x + 3 ) 2 = \(\frac{9}{21}\)
b) ( 3x - 1 ) 3 = \(\frac{-8}{27}\)
c) \(|2x+1|\)- 3 = 6
Bài 1.Tính : M=\(\frac{8^{20}+4^{20}}{4^{25}+64^5}\)
Bài 2.Tính x,biết :
a) \((x^4)^2=\frac{x^{12}}{x^5}(x\ne0)\) b)\(x^{10}=25x^8\)
Baì 3.Tĩnh x,biết:
a) \(\left(2x+3\right)^2=\frac{9}{121}\) b)\(\left(3x-1\right)^3=-\frac{8}{27}\)
Tìm x biết
a) x+2x+3x+4x+...+100x=-213
b)\(\frac{1}{2}x-\frac{1}{3}=\frac{1}{4}x-\frac{1}{6}\)
c)3(x-2)+2(x-1)=10
d)\(\frac{x+1}{3}=\frac{x-2}{4}\)
e)\(\frac{x-6}{7}+\frac{x-7}{8}+\frac{x-8}{9}=\frac{x-9}{10}+\frac{x-10}{11}+\frac{x-11}{12}\)
f)\(\frac{x+32}{11}+\frac{x+23}{12}=\frac{x+38}{13}+\frac{x+27}{14}\)