Các câu hỏi tương tự
tim x biet x-y=xy-1
cm x^3 -x^2 -2x^2 +2x chia het cho 6
tim tap hop cac so nguyen x de gia tri cua da thuc x^3+3x-5 chia het cho x^2+2
tim x, y thuoc Z
sao cho x^6-x^4+2x^3+2x^2=y^2
Tim so nguyen x de (2x+5) chia het cho (3x2+2x+2). Cac ban giai giup minh nhe...cam on nhieu
Tim tat cac cac cap so nguyen x,y thoa man a) x^2+5xy+4y^2
b)xy-2x+3y-1
Tim tat cac cac cap so nguyen x,y thoa man a) x^2+5xy+4y^2
b)xy-2x+3y-1
Tim tat cac cac cap so nguyen x,y thoa man a) x^2+5xy+4y^2
b)xy-2x+3y-1
cho x,y thuoc R khac 0 thoa man 2x^2 + y^2/4 +1/x^2 = 4. tim gtnn gtln cua A= 2008+xy
choP=(1/(x-2)-x^2/(8-x^3)*(x^2+2x+4)/(x+2)0/1/(x^2-4) tim DKXD va rut gon b tim Min p c tim x nguyen de p chia het cho x^2+1