Question

Find the cube-root of -2744000

Answer 1

-2744000
= `root(3)(-2744000)`

2	2744000
2	1372000
2	686000
7	343000
7	49000
7	7000
10	1000
10	100
10	10
	1

 

 

 

 

 

 

 

 

 

 

= `sqrt(-2 xx -2 xx -2 xx -7 xx -7 xx -7 xx -10 xx -10 xx -10)`
= -2 x -7 x -10
= -140