What is the factored form of the expression. factor completely. 56k^3-84k^2+70k-105

The answer would be

3x (2x - 3)(x^2 - 6 )

I hope this was helpful :D

Expression 56k³ - 84k² + 70k - 105 can be simplified to: 7(8k³ - 12k² + 10k - 15)

8k³ - 12k² + 10k - 15 is a third degree expression. it will be factorised to:
(k - 1.5)(k + 2.2)²

Finally expression 56k³ - 84k² + 70k - 105 can be simplified to: 7(k - 1.5)(k + 2.2)²

Good luck

Idon't know the answer