bentuk sederhana dari 2/7 akar 98 - 5/3 akar 18 + 2/5 akar 75

2/7×98= 2×14=28
5/3×18= 5×6=30
2/5×75= 2×15=30
28-30+30= 28
#KalauSalahMaafYa :)

2/7√98 - 5/3√18 + 2/5√75
=2/7√49.2 - 5/3√9.2 + 2/5√25.3
=2/7 .7√2 - 5/3 .3√2 + 2/5 .5√3
=2√2 - 5√2 + 2√3
=-3√2 + 2√3