Question

Find the cube root 24 × 36 × 80 × 25

Answer 1

2	24
2	12
2	6
3	3
	1

2	36
2	18
3	9
3	3
	1

2	80
2	40
2	20
2	10
5	5
	1

24 = 2 × 2 × 2 × 3

36 = 2 × 2 × 3 × 3

80 = 2 × 2 × 2 × 2 × 5

25 = 5 × 5

24 × 36 × 80 × 25 = `bar(2 xx 2 xx 2) xx bar(2 xx 2 xx 2) xx bar(3 xx 3 xx 3) xx bar(2 xx 2 xx 2) xx bar(5 xx 5 xx 5)`

`root(3)(24 xx 36 xx 80 xx 25)` = 2 × 2 × 3 × 2 × 5 = 120