Các câu hỏi tương tự
tim cac cap so nguyen thoa man cua phuong trinh sau:
a)2x+y=0
b)6x-15y=4
tim cac cap so la nghiem cua moi phuong trinh sau:
a)2x+3y=5
b)x-3y=0
c)6x-15y=4
So cap (x0;y0) nguyen thoa man phuong trinh 2x6+y2-2x3y=320
Tim tat ca cac cap so nguyen(x,y) thoa man:
10x + y = x2 + y2 +1
tim cac so tu nhien thoa man phuong trinh
\(x^2+2y^2=2377\)
cho phuong trinh : x^ - 6x + m-1 =0 . tim m de phuong trinh co hai nghiem x1,x2 thoa man x1^ + x2^ =12
a)Tim cap (x,y) nguyen duong thoa man xy=3(y-x)
b)cho 2 so x,y >0 thoa man x+y = 1
Tim GTNN cua M=(x^2+1/y^2)(y^2+1/x^2)
cho phuong trinh 2x2 - mx -20 =0 (tham so m) . a; chung minh rang phuong trinh co hai nghiem trai giau voi moi m .b; tim m phuong trinh co 2 nghiem x1,x2 thoa man 2x1-x2=12
cho he phuong trinh 3x-y=2m+3 va x+2y=3m+1 tim m de he phuong trinh co 2 nghiem x y thoa man x^2+y^2=5