x(25-23)+x=250
x.24+x=250
x(24+1)=250
x25=250
suy ra x=10
\(x.\left(2^5-2^3+1\right)=250\)
\(x.25=250\)
\(2^5\cdot x-2^3\cdot x+x=250\)
\(x\cdot\left(2^5-2^3\right)+x=250\)
\(x\cdot24+x=250\)
\(x\cdot\left(24+1\right)=250\)
\(x\cdot25=250\)
\(x=250\div25\)
\(x=10\)
2^5.x-2^3.x+x.1=250
(2^5-2^3+1).x=250
(32-8+1).x=250
25.x=250
x=250:25
x=10
Vậy x = 10