Các câu hỏi tương tự
1) Tim a, b thuoc Q biet: a-b=2(a+b)=a:b
2) Tim x thuoc Q sao cho: (x-1)(x+3)<0
tim cac gia tri cua x thuoc Q , biet : ( x+1)(x-2)< 0
tim x thuoc Z biet x^3-x^2+x-1=0
tim cac gia tri cua x thuoc Q , biet : (x-2 ) : (3x+2) < 0
tim x thuoc z biet
a) (x-1)(x+2) < 0
b) (x+3)(x-5) > 0
Tim x thuoc Q biet rang x la so am lon nhat viet bang 3 chu so 1
a)Tim x, y thuoc Q biet:
(x-1)^2+(y+1)^2=0
b)Tim x, y biet:
2^x+1 × 3^y = 12^x
Tim x biet
a /x/=2 1/2
b /x+1/=3 1/3
c 2×/×-2/=0
d 1,5-3×/x+1/
e 2×/3-2x/-4,5=/-2,5/
Xem chi tiết
tim cac so x,y,z thuoc Q biet rang (x+y):(5-z):(y+z):(y+9)=3:1:2:5