1) 
y>0
9y²-244y+27=0
d=122²-9*27=14641
y1=122-121/9=1/9
y2=122+121/9=27
3^0.1x=3^(-2) 3^0.1x=3^3
0.1x=-2 0.1x=3
x=-20 x=30
2)8*(2^(0.2x))²-34*2^(0.2x)+8=0
2^0.2x=y y>0
8y²-34y+8=0
4y²-17y+4=0
d=17²-4*4*4=225
y1=17-15/8=1/4
y2=17+15/8=4
2^0.2x=2^(-2) 2^0.2x=2^2
0.2x=-2 0.2X=2
x=-10 x=10