Question

calculati:0,32*radical din 8-2/15*radical din 27 +0,12*radical din 18 -3/10radical din 12

Answer 1

0,32*√8=0,64√2
0,12*√18=0,36*√2
2/15*√27=2/45*√3=2√3/135
3/10√12=3/20√3=3√3/60=√3/20

0,32*√8-2/15*√27 +0,12*√18 -3/10√12=
=(0,64+0,32)√2-2√3/135 -√3/20=
=√2-8√3/540 -27√3/540=
=√2-35√3/540=
=√2 - 7√3/108