tim nghiem nguyen cua phuong trinh
x^3-y^3-2y^2-3y-1=0
tim nghiem nguyen duong cua phuong trinh \(x^2+\left(x+y\right)^2=\left(x+9\right)^2\)
tim nghiem nguyen cua phuong trinh : \(y^2=1+x+x^2+x^3+x^4\)
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: x+y+2=3xy
ghi cach giai gium minh. minh tick cho
kết quả của phép tính (3x + 2 y) - (2y-3 x) là
A4 x ^ 2 trừ 9 x ^ 2
B6 x ^ 2 - 13 x y + 6 y^ 2
C 9x^2-4y2
D6x2-13xy+6y2
Tim nghiem nguyen cua phuong trinh: 2xy + x + y=83
a) x^2+4x+4-y^2
b) x^2-16-4xy+4y^2
c) x^3+2x^2y +xy^2
d) 5x+5y-x^2-2xy-y^2
e) x^5-x^4+x^3-x^2
tim cac nghiem nguyen cau phuong trinh x2-2x-11=y2