Các câu hỏi tương tự
1 )Tim x, y thuoc Z
x + y = x.y
2) Tim x thuoc Z
(x + 1)+(x+3)+(x+5)+...+(x+99)=0(x-3)+(x-2)+(x-1)+...+10+11=11-12(x-5)+7(3-x)=530(x+2)-6(x-5)-24x=100
1 tim min
A=/X5-32/-17
B=/X-9/-X+15
C=/X-5/+X-3
2 tim max
D=17-/ /X/-2 /
Tim x biet : 20 . 2^x + 1 = 10.4^2 + 1
Tim x : ( 4-x:2)^3 - 1 = 2 . (2^3 - 5 : 2^0 )
tim x : x+2/5 =x-2/7
tim x:
5^x+5^x-2=3250
1.Tim cac chu so x va y de so 1x8y2 chia het cho 36
2.tim cac gia tri nguyen cua n de phan so A=3.n+2/n-1 co gia tri la so nguyen
3.tim cac chu so x y thoa man
(x-2)^2.(x-3)^2=4
4.tim so tu nhien x biet
(x-5):3/100=20.x/100 +5
tim x:-(x-5)+2=4-x
tim x:(x-2).(5-x)=0
Tim x biet : a) 5-|x-2|+x=0. (b) |x-1|+2-x=72
Tim x
(3/5.x-2/3.x-x)1/7=-5/21