5^{2x}-27\cdot5^{x}+50=0

2^{2x-1}-3\cdot2^{x}+4=0

5^{x}+\frac{500}{5^{x}}=129

5^{2x-1}-126\cdot5^{x}+625=0

0.2^{x}+\frac{1.5}{0.2^{x}}=2.5

0.2^{2x-1}-1.008\cdot0.2^{x}+0.0016=0

5^{2x-1}-26\cdot5^{x}+125=0

0.04^{x}-0.2^{x+1}+0.2^{x}-0.2=0

0.5^{2x}-4\cdot0.5^{x}+3=0

5^{2x-1}-126\cdot5^{x}+625=0

0.2^{x}+\frac{0.16}{0.2^{x}}=4.04

5^{2x-1}-6\cdot5^{x}+25=0

2^{2x-1}-3\cdot2^{x}+4=0

3^{2x}-4.5\cdot3^{x}+3.5=0

2^{2x-1}-5\cdot2^{x}+8=0

3^{2x-1}-10\cdot3^{x}+27=0

9^{x}-3^{x+3}+3^{x}-81=0

0.25^{x}-0.5^{x+2}+0.5^{x}+0.25=0

3^{2x-1}-4\cdot3^{x}+9=0

10^{2x}-1005\cdot10^{x}+5000=0

25^{x}-5^{x+3}+5^{x}+125=0

0.5^{x}+\frac{0.5625}{0.5^{x}}=4.625

25^{x}-5^{x+4}+5^{x}-625=0

0.2^{2x}-4.2\cdot0.2^{x}+0.8=0