Các câu hỏi tương tự
tim so chinh phuong co 4 chu so. Biet so gom 2 chu so dau lon hon so gom 2 chu so cuoi 1 don vi.
lap he phuong trinh tim 1 so co 2chu so biet tong 2chu so la 12 vai khi thay doi thu tu 2chu so, so moi lon hon so cu 18
Tim so tu nhien co 2 chu so biet rang chu so hang chuc lon hon chu so hang don vi la 2 va so do lon hon tong cac binh phuong cac chu so cua no la 1.
Tim cac so nguyen y sao cho bieu thuc 2377-9y^2-6y la binh phuong mot so tu nhien
tim hai so biet rang tong cua chung la 18 neu tang moi so them hai don vi thi tich cua chung tang len 1,5 lan giai bai toan bang cach lap phuong trinh
Tim tat ca cac so nguyen n (/n/ < 1000) sao cho \(\sqrt{3n^2+2949}\)la mot so chinh phuong chia het cho 3.
tim cac so tu nhien x,y de (2x+y)^4+(x+y)^4+(x+2y)^4 la so chinh phuong
tim so tu nhien n de n(n+3) la so chinh phuong
cho n la mot so chinh phuong bat ki . CMR n co dang 4k hoac 4k +1 voi k la so tu nhien