1,Tim cac so nguyen x va y sao cho (x-2)(y-1) =5.
2,Tim so nguyen n sao cho n+5 chia het cho 2n-1
a,thuc hien phep tinh: 5*(2^2*3^2)^9*(2^2)^6-2*(2^2*3)^14*3^4/5*2^28*3^18-7*2^29*3^18
b,tim cac so nguyen n sao cho: n^2+5*n+9 la boi cua n+3
c,tim x,y nguyen sao cho: xy+2*x+y+11=0
Tim so nguyen x bt
(x - 9 ) . (x + 2 ) = 0
Tim so nguyen n sao cho 2n - 1 là bội của n + 3
bai 1:tim so nguyen x sao cho gia cua cac phan so la so nguyen
a)x+3/x-2
b)x2+3x-2/x+2
chu y:dau / la dau chia trong phan so
bai 2:cho A=2n+1/n-2 voi n la so nguyen
a)tim n de a la phan so
b)tim n de A nguyen
c)tinh gia tri cua A biet:n=2;1;-2;-1
giup minh voi minh dang can.Ai dung minh tick cho
tim cac so nguyen duong n sao cho n^2/60-n la 1 so nguyen to
tim so so nguyen n nho nhat sao cho n^2+5^n+1 la so nguyen to.
tra loi n=?
tim so nguyen duong n nho nhat sao cho n^2 + 5n + 1 la so nguyen to
tim so nguyen duong n nho nhat sao cho n/2 la binh phuong cua mot so nguyen va n/5 la lap phuong cua 1 so nguyen
tim so nguyen n sao cho
phan so 3n+2\n-1 co gia tri la so nguyen