5^x + 5^x + 2 = 650
5^x+5^x+2=650
5^x+5^x+2=650
5x + 5x +2 = 650
5x + 5x . 52 = 650
5x .( 1 +25 ) = 650
5x .26 = 650
5x = 650 / 26 =25
5x = 52
nên x=2
5^x+5^x+2=650
5^x+5^x.5^2=650
5^x.26=650
5^x=25
=) x=2
5^x+5^x+2=650
5^x+5^x+2=650
=>5^x(1+52)=650
=>5^x*26=650
=>5^x=25
=>x=2
tìm x, biết ; 5^x + 5^x+2=650
tìm x biết 5^x+(5^x+2)=650
5x+5x+2=650
=>5x(1+52)=650
=>5x.26=650
=>5x=650:26
=>5x=25
=>5x=52
=>x=2
Vậy x=2
Tìm x
a)(2/5)^x >(2/5)^3×(-2/5)^2
b)5^x+5^x+2=650
2x=3y=5zvà /x-2y/=5
5^x+5^x+2=650
5 mũ x+5 mũ x+2=650
Tìm x
\(5^x+5^x+2=650 \)
\(\Rightarrow2.5^x=650-2=648\)
\(\Rightarrow5^x=\frac{648}{2}=324\)
\(\Rightarrow x\in\varnothing\)
5 mủ x 5 mủ 2+2 = 650