\(x_{}^2+xy_{}+x+2022x+2022y_{}+2022_{}+1=0\)

\(x.\left(x+y+1\right)+2022.\left(x+y+1\right)+1=0\)

\(\left(x+y+1\right).\left(x+2022\right)_{}=-1\)

có 2 trường hợp:

th1: \(\begin{cases}x+y+1=1\\ x+2022=-1\end{cases}\) suy ra \(\) \(\begin{cases}x=-2023\\ y=2023\end{cases}\)

th2: \(\begin{cases}x+y+1=-1\\ x+2022=1\end{cases}\) suy ra \(\) \(\begin{cases}x=-2021\\ y=2019\end{cases}\)

a, V=\(\frac13.S.h=\frac13.30.10=100dm^3\)

b, ta có phương trình hoành độ giao điểm x+4=-x+4 suy ra 2x=0 suy ra y=4 vậy tọa độ giao điểm của đường thẳng d1 và d2 là (0;4)

a, x.(x-3)=0 suy ra x=0 hoặc x=3

b,( \(x^2-\) 2x)- ( 4x - 8) =0 suy ra x.(x-2)-4.(x-2) =0 suy ra ( x-2) .(x-4) =0 suy ra x=2 hoặc x=4

a, \(2.x^2.y\) - \(9.x^2\)

b, \(\frac23x^9y\)

c, \(\frac{x}{x-2}\)

d, \(\frac{2}{x+y}\)

My favorite hobby is reading books.
I started this hobby when I was about ten years old. I usually read books by myself because I enjoy the quiet time it gives me. I often read in my bedroom or at the library after school. Reading helps me relax and learn many interesting things about the world. I think it’s a wonderful hobby because it makes me smarter and more creative