Question

_/ simbol itu artinya akar
tulislah dalam bentuk akar yg paling sederhana
1._/50 - _/8 + _/18=
2._/27 - _/75 + _/48=
3,2_/80 + _/45 - 2_/125=

Answer 1

1. √50 - √8 +√18
 = √25.2 - √4.2 +√9.2
=5√2 - 2√2 + 3√2
=3√2 + 3√2
=6√2

2. √27-√75+√48
= √9.3 - √25.3 +√16.3
=3√3 - 5√3 + 4√3
=-2√3 + 4√3
=2√3
3. 2√80+√45- 2√125
=2√16.5 + √9.5 - 2√25.5
=2.4√5 + 3√5 - 2.5√5
=8√5 + 3√5 - 10√5
=11√5 - 10√5
=1√5