5^2x-3-2.5^2=5^2.3
tim x biet 5^(2x-3)-2.5^2=5^2.3
52x-3-2.52=52.3
52x-3-2.52=52.3
a)5^x+1=125
b)5^2x-3-2.5^2=5^2.3
c)4^x.3=16
52x-3 - 2.5 =52.3
\(5^{2x-3}-2.5^2=5^2.3\)
Tìm số tự nhiên x , biết
tìm x :
a |x-5|+2x+3=11 b x-7+|3-x|=10. c 5^2x-3-2.5^2=5^2.3
Tìm x :
\(a,5^x=125\)
\(b,3^{2x}=81\)
\(c,5^{2x-3}-2.5^2=5^2.3\)
