tim gia tri cua a de nghiem cua pt
\(\frac{a^2-4}{2x-5}=2+a\) la so nguyen duong nhung nho hon 2
tim nghiem nguyen duong cua phuong trinh \(x^2+\left(x+y\right)^2=\left(x+9\right)^2\)
tim nghiem nguyen cua pt: x+y+2=3xy
ghi cach giai gium minh. minh tick cho
tim nghiem nguyen cua pt
a)x^2+x+6=y^2
b)x^2+x+1991=y^2
c)x^2=y^2+2y+13
Tim nghiem nguyen duong cua phuong trinh
\(\frac{2016}{x+y}+\frac{x}{y+2015}+\frac{y}{4031}+\frac{2015}{x+2016}=2\)
Tim nghiem nguyen cua PT: \(4\left(x+y\right)=11+xy\)
tim nghiem nguyen cua pt x³-y³=3xy+1 va x+y=2xy
tim nghiem nguyen cua phuong trinh
x^3-y^3-2y^2-3y-1=0
tim nghiem tu nhien cua pt
2^x-3^y=1