Đại số lớp 6
Các câu hỏi tương tự
1)tìm x\(\in\)Q biết:
a)\(\left(5\cdot x+1\right)^2=\dfrac{36}{49}\)
2)tìm x,y biết:
a)\(x^2+\left(y-\dfrac{1}{10}\right)^4=0\)
b)\(\left(\dfrac{1}{2}x-5\right)^{20}+\left(y^2-\dfrac{1}{4}\right)^{40}\le0\)
1) Tìm x;y thuộc Z thỏa :
\(\left(x-2\right)^2+\left(y+16\right)^{2016}=0\)
Tìm x ; y \(\in\) Z :
\(\left|x+2\right|\) +\(\left|y-4\right|\) = 0
Tìm x;y \(\in\) Z
\(\left|3x+2y\right|\) +\(\left|4y-1\right|\) \(\le\) 0
\(\left|x+y-7\right|\) \(\left|xy-10\right|\) \(\le\) 0
\(\left|x-y-2\right|\) +\(\left|y+3\right|\) =0
Tìm x, biết:
\(\dfrac{2}{\left(x-1\right)\left(x-3\right)}+\dfrac{5}{\left(x-3\right)\left(x-8\right)}+\dfrac{12}{\left(x-8\right)\left(x-20\right)}-\dfrac{1}{x-20}=\dfrac{-1}{4}\)
Tìm x biết :a) 3+2^{x-1}24-left[4^2-left(2^2-1right)right]b) left(x+1right)+left(x+2right)+left(x+3right)+...............+left(x+100right)205550c) left|x-5right|18+2.left(-8right)d) left(3.x-2^4right).7^52.7^6.frac{1}{2009^0}
Đọc tiếp
Tìm x biết :\(a\)) \(3+2^{x-1}=24-\left[4^2-\left(2^2-1\right)\right]\)\(b\)) \(\left(x+1\right)+\left(x+2\right)+\left(x+3\right)+...............+\left(x+100\right)=205550\)\(c\)) \(\left|x-5\right|=18+2.\left(-8\right)\)\(d\)) \(\left(3.x-2^4\right).7^5=2.7^6.\frac{1}{2009^0}\)
Tìm x;y \(\in\) Z
\(\left|x-y\right|\) + \(\left|y+\frac{9}{25}\right|\) =0
Tìm x;y \(\in\) Z
\(\left|3x-4\right|\) +\(\left|3y+5\right|\) =0
Tính 5 giá trị của \(x\in Z\) sao cho :
\(\text{a) }4\left(x-8\right)< 0\)
\(\text{b) }-3\left(x-2\right)< 0\)