Các câu hỏi tương tự
tim x : |3-2x|-|x-5|+|2x-1|=1
tim x
a/ (5x -1)^6 =729
b/(2x+1)^3=0,001
c/(2x-3)^4=(2x-3)^6
d/(2x+1)^5=(2x+1)^2010
P(x)=2x^5+2x+8-3x^2-2x^5+2x^3-4x^4 tim bậc của p(x)
a,tim x biet |x-2|+|3-2x|=2x+1
b,tim x,y thuoc Z biet xy+2x-y=5
c, tinh A=(1-1/15)(1-1/21)(1-1/28).....(1-1/210)
a, Tim x biet:/x-2/+/3-2x/=2x+1
b, Tim x,y thuoc Z biet:xy+2x-y=5
c, tim x,y,z, biet :2x=3y;4y=5zva 4x-3y+5z=7
tim x
/2x-3/-2/4-x/=5
/x/-/2x+3/=x-1
Tim xthuoc Z biet:
1,|2x-5|-|2x+9|=0
2,|x+1|-|x+2|-|3-x|=7
3,|2x+3|+|3x+2|-|4-x|=10
Tim nghiem:
a,3(1-x)-5(2x-2)
b, gia tri tuyet doi 3x-2 -4
c, 2x-x^3
d, x(1-2x)+(2x^2-x+4)
tim cac so nguyen x de cac bieu thuc sau co gia tri nguyen:
a.-24/x+18/x
b.2x-5/x+1
c.3x+2/x-1-x-5/x-1
d.5x-4/2x+3 - 2x-5/2x+3