Question

8.4 , 8.5
W załączniku. Na teraz

Answer 1

8.4.

2√5=√4*5=√20
3√7=√9*7=√63
2√13=√4*13=√52
5√2=√25*2=√50
3√17=√9*17=√153
4√15=√16*15=√240
0,5√10=√0,25*10=√2,5
0,2√30=√0,04*30=√1,2
1/3√21=√21/9
2/3√33=√4*33/9=√44/3
1/5√7=√7/25
0,1√37=√0,01*37=√0,37

8.5.

(√2+√3+√6)√2=2+√6+√12=2+√6+2√3
(9√2-3√3-7√2+5√3)6=(2√2+2√3)6=12√2+12√3
(√3-√12+√27)√3=3-√36+√81=3-6+9=6