Các câu hỏi tương tự
tim x y e n biet
( x - 4 ). ( x - 3 ) =0
Tim x e n biet
12 x ( x - 1 ) = 0
b) 70 - 5 (x - 3 ) =45
Tim x e N
2x-7 =20+5.(-3)
tim x e N :
3n-1 chia het 3-2n
tim x E Z sao cho 49 chia het cho (n+3)
tim x e N
6^x.6^3:6^5+81=11^2-4
(2x+1")^3-2012^0+63
Tim x E N biet:
a) ( x +17 ) : 21 -3 = 17
b) 5x -1 - 125 = 3000
Tim X E N
1+3+5+...+(2x+1)=225
Tim x E N
1+3+5 +...+(2X+1)+225
6^x.6^3:6^5+81=11^2-4
(2x+1)^3 -2012^0=63
tim x e N