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 nguyen thoa man phuong trinh sau:
a)2x+y=0
b)6x-15y=4
tim nghiem tong quat cua moi phuong trinh sau:
2mx+3y=m-2
tim nghiem nguyen cua phuong trinh x2 - 7x-\(\sqrt{3y}\)+12 - \(\sqrt{3}\)=0
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 phuong trinh x2 + (m-2)x -8 =0 voi m la tham so
tim tat ca cac gia tri cua m de phuong trinh co 2 nghiem x1 , x2 sao cho A= (x12 -1)(x22 -4) dat GTLN
HELP ME !!!
tim tat ca cac nghiem nguyen (x, y) cua phuong trinh x*3+y*3=(x+y)²
xac dinh cac he so cua phuong trinh \(^{x^2+px+q=0}\) (x la an so) (1),biet \(x_1-x_2=5\) va \(x_1^3-x_2^3=35\)(\(x_1;x_2\)la cac nghiem cua phuong trinh (1))
1)Giai phuong trinh:
a) x4+4x2-5=0
b)Cho phuong trinh: x2-2(m+1)x+m2+3m-4=0(1)
Giai phuong trinh khi m=2Chung minh phuong trinh luon co nghiem voi moi m.Goi x1,x2 la nghiem cua phuong trinh,tim m de thoa man dieu kien:x12+x22=10