Các câu hỏi tương tự
Cho phuong trinh (2x-m) / (x-2) + (x-1) / (x+2) = 3. Tim m de phuong trinh co nghiem duong.
phuong trinh : mx.x+2x+m.m-5.m+2=0 co nghiem la x=1 thi m =?
neu phuong trinh 3x2+5y=28 thi co nghiem nguyen (xo;y0) thi x0 chi 5 co so du la
giai phuong trinh nghiem nguyen:x^4+x^2-y^2-y+20=0
Cho phuong trinh x3 +kx2 -4x -4=0
a) Xac dinh k de phuong trinh co 1 nghiem x=1
b) Voi gia tri k vua tim duoc, tim cac nghiem cua phuong trinh
giai phuong trinh nghiem nguyen:x^4-x^2+2x+2-y^2=0
1.tong tat ca cac nghiem cua phuong trinh : 3x4+5x3-x2-5x-2=0 la
2. tich tat ca cac nghiem cua phuong trinh 2x4+7x3-2x2-13x+6=0
tim nghiem nguyen cua phuong trinh
x^3-y^3-2y^2-3y-1=0
1 . tong binh phuong tat ca cac nghiem cua phuong trinh : x4(x-1)+(x-1)x3=0
2.neu da thuc 2m3-m+n co 2 nhan tu la : x+2 va x-1 thi gia tri cua 2m+3n la
3.tong x; y thoa man (x-2015)2+(y-2014)4>hoac bang 0 la ?