Tim x,y,z la cac so nguyen sao cho: 6x+ 15y+ 10z= 3
Tim cac so nguyen x y z sao cho 6x+15y +10z = 3
TIM CAC SO NGUYEN X SAO CHO ( -2240 : 6X+3 ) : ( 1+ 2 : 3 ) LA SO NGUYEN
cho x,y,z la cac so huu ti duong thoa man x+1/yz y +1/xz z+1/xy la cac so nguyen tim gia tri lon nhat cua bieu thuc A=x+y^2+z^3
tim cac cap so nguyen thoa man phuong trinh sau:
a)2x+y=0
b)6x-15y=4
tim cac cap so nguyen thoa man cua phuong trinh sau:
a)2x+y=0
b)6x-15y=4
Tìm các số nguyên x,y,z thỏa mãn:6x+15y+10z=3
1. tim cac cap so nguyen duong (x, y) sao cho:
2 x3 + xy = 11
2. tim cac cap so nguyen duong (x, y, z)sao cho:
x + y + z = x*y*z
3. tim x thuoc z, biet;
|x| = -2003
|x| = |-2003|
minh dang can gap lam. chieu mai phai nop rui
cho x, y la cac so nguyen duong sao cho A = x^4 + y^4 / 15 cung la so nguyen duong . cmr : x va y deu chia het cho 3 va 5 , tu do tim gtnn cua A
tim cac so nguyen x,y thoa man 3xy +x+15y-44=0
\(3xy+x+15y-44=0\)
\(\Leftrightarrow x\left(3y+1\right)+5\left(3y+1\right)=49\)
\(\Leftrightarrow\left(3y+1\right)\left(x+5\right)=49\)
Vì x;y là số nguyên
\(\Rightarrow\hept{\begin{cases}3y+1\\x+5\end{cases}\in}Z\)
\(\Rightarrow\hept{\begin{cases}3y+1\\x+5\end{cases}\in}\text{Ư}\left(49\right)=\left\{\pm1;\pm7;\pm49\right\}\)
Tự lập bảng giá trị nhé