Tim nghiem nguyen duong cua pt:\(\frac{xy}{z}+\frac{yz}{x}+\frac{zx}{y}=3\)
tim nghiem nguyen duong cua phuong trinh xy^2+2xy+x = 32y
cho phuong trinh x2+(2m-5)x-n=0 cho m=5 tim n nguyen nho nhat de bphuong trinh co nghiem duong
tim nghiem nguyen cua pt
xy + x - 2y = 5
tim nghiem nguyen cua pt
\(x^2+xy+y^2=x^2y^2\)
bai 1 : cho 2 pt : x2 -3x+2m+6 =0 (1) va x2+x-2m-10=0 (2) . CMR : voi moi m , it nhat mot trong hai phuong trinh tren co nghiem .
bai 2 : cho parabol (P) : y= -1/4x2 va duong thang (d) co pt : y= (m+1)x+m2+3 (voi m la tham so ). tim tat ca gia tri cua m de duong thang (d) va parabol (P) khong co diem chung .
a,giai pt (x-3/x-2)^3-(x-3)^3=16
b,tim nghiem nguyen cua pt: 8x^2+23y^2+16x-44y-1180=0
tim nghiem duong cua pt
7x^2 + 7x= \(\sqrt{\frac{4x+9}{28}}\)
tim nghiem nguyen duong: \(3^x=y^2+2y\)
