(x-1)nhan(y+10)=5
(x+2)nhan(y-3)=-3 tim y va x
tim cac so nguyen to x,y thoa man:(x -2) nhan (y-3)=-4
tim x y thuoc z biet x mu 2 cong y nhan x cong y mu 2 bang x mu hai nhan y mu hai
Tim x,y thuoc N thoa(2x) nhan (y+1)=12
tim x , y thuoc z ; x nhan y = 5 va x < y
tim x 5/8 nhan gia tri tuyet cua x-2/3=-1/4
tim x;y thuoc z biet y phan tru 2 bang x tru 2 nhan y phan x
2 nhan x phan 3 nhan y cong x bang1 phan y
bai 1:tinhnhanh:1998.1998-2000.1996
bai 2:tim x:
(3/4.x+2)/20-5
luu y:.la nhan
tim x,y thoa
a2 mũ x mũ 2 nhân 3 mụ ý bằng 12 mũ x
b(x+1) nhan (c,y-1) bang 3