cho phuong trinh \(x^2-4x+m+1=0\)
a) tim m de phuong trinh co ngiem.
b) tim m de phuong trinh co ngiem \(x_1,x_2\) thoa man:\(x_1^2+x^2_2=10\).
c) tim m de phuong trinh co hai ngiem \(x^2_1,x^2_2\) thoa man:\(x_1^3+x_2^3=34\).
giai phuong trinh nghiem nguyen 8x2-7x+-13= y(x-1)2
giai phuong trinh nghiem nguyen
a)5x+7y=112
b)21x-17y=-3
c)38x+117y=1
giai phuong trinh nghiem nguyen 4x^2+8x=38-6y^2. mình cần rất gấp . help me
giai phuong trinh nghiem nguyen : x^2+x=y^4+y^3+y^2+y
Giai phuong trinh nghiem nguyen sau :
\(x^4+x^3+x^2=y^2\)
Giai phuong trinh nghiem nguyen
x2-xy+y2=x2y2-5
giai cac phuong trinh va bat phuong trinh sau:
2(x-1)-5=3(5-3x)
giai giup minh bai phuong trinh nghiem nguyen nay voi
x2+x=y2-19
x2+14xy+5y2=169