l-2y+1l.lx+4y+3l=20 .tim x,y laf soos nguyeen duong
Tim cac so nguyen duong x;y biet: |x-2y+1|.|x+4y+3|=20
de ma suy ra 1 trong 2 ve la uoc cua 20
chi la uoc duong thoi vi cogia tri tuyet doi ma
tim cac so nguyen duong x;y biet |x-2y +1|.|x+4y+3| =20
Tim cac so nguyen duong x,y biet |x-2y+1|.|x+4y+3| = 20
tim cac so nguyen duong x,y biet |x-2y+1| |x+4y+3|=20
CMR neeus n laf soos nguyeen duongw khoong chia heets cho 3 thif A= 302n+3n+1 chia hết 13
tim cac so xy nguyen duong biet /x-2y+1/*/x+4y+3/=20
timf cacs soos nguyeen x, y sao cho: y/3-1/x=1/3
tim cac so nguyen duong(x,y) de gia tri truyet doi cua x-2y+1 * gia tri tuyet doi cua x+4y+3 =20
tìm các số nguyên dương x,y biết:lx-2y+1l*lx+4y+3l=20