Question

factorise x cube minus 23 x square - 142 X - 120​

Answer 1

Step-by-step explanation:

x

3

−23x

2

+142x−120

=x

3

−x

2

−22x

2

+22x+120x−120

=x

2

(x−1)−22x(x−1)+120(x−1)

=(x−1)(x

2

−22x+120)

=(x−1)[x

2

−10x−12x+120]

=(x−1)[x(x−10)−12(x−10)]

=(x−1)(x−10)(x−12)

Answer 2

Step-by-step explanation:

since it's a cubic equation you will have three small brackets when further simplified you get the answer of the value X.