Factorise x^3-23x^2+142x-120
Answers
Answered by
1
Step-by-step explanation:
x³ - 23x² + 142x - 120
hope it helps
Answered by
7
Answer
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)
Attachments:
Similar questions