tim so tu nhien n de n^4 +4 la so nguyen to
tim cac so tu nhien x sao cho 4x^4+1 la so nguyen to
tim cac so tu nhien n de gia trị bieu thuc sau la so nguyen to : 5n^3-9n^2+15n-27=0
tim so tu nhien n de n2009+n2008+1 la so nguyen to
giai ho minh voi minh can gap lam ai tra loi minh tich cho
1 tim cac so nguyen x thoa man 1 trong cac dieu kien sau
a) 2x+1 la scp
b) 4x=1 la scp
c)8x+1 la scp
2 tim nguyen tu nhien cua phuong trinh x^2-y^2=y+1
cho m la so nguyen duong nho hon 30.tim m de da thuc x2+mx+72 viet thanh tich 2 da thuc bac nhat voi he so nguyen
cho bieu thuc P=a/a^2-a+1 tim a la so tu nhien de bieu thuc P co gia tri nguyen
Cho \(P=\frac{x+3}{x-3}\)
Tim \(x\in Z\) de la so nguyen to
cho phan thuc 4x-4/2x^2-2 :
a) Tim dieu kiem xac dinh
b)cho gia tri cua x=-2 tinh phan thuc
c) Tim gia tri cua x de gia tri phan thuc la so nguyen