1.√0.36=0.6
-3√9-64=-9-8=-17
(2√4)^2-1.5=16-1.5=14.5
√7^2+15=√49+15=√64=8
2.x^2=0.36
x=√0.36
x=0.6
30+x^2=31
x=√31-30
x=1
(y+5)^2=4
y+5=√4
y+5=2
y=-3
3.√3.4<√4.2<br>√144<√145<br>√6.25=2.5
2.3<√6.25<br>4.√0.25*64=√16=4
√56*√14=√56*14=√784=28
√8:2=√4=2
√1:11*√11:13*√13:25=√1:25=1:5