Question

Akar 45 -akar 125 +akar 180-akar 20 adalah

Answer 1

Akar 45 = akar 5 x akar 9 = 3 akar 5
akar 125 = akar 5 x akar 25 = 5 akar 5
akar 180 = akar 5 x akar 36 = 6 akar 5
akar 20 = akar 5 x akar 4 = 2 akar 5

= 3 akar 5 - 5 akar 5 + 6 akar 5 - 2 akar 5
= 6

Answer 2

/45 = /9./5 = 3/5
/125 = /25 . /5 = 5/5
/180 = /36 /5 = 6/5
/20 = /4. /5 = 2/5

Maka
3/5 - 5/5 + 6/5 -2/5 = 2/5