Question

Q8) Factorise : x³-23x²+ 142x-120​

Answer 1

Answer:

(x-1) (x-12) (x-10)

Step-by-step explanation:

x³ - 23x² + 142x - 120

x³ - x² - 22x² +22x +120x - 120

x²(x-1) - 22x(x-1) + 120(x-1)

(x-1) (x² - 22x  + 120)   [Taking x-1 as common factor]

(x-1) (x² - 10x - 12x + 120) [Splitting the middle term]

(x-1) (x (x-10) - 12 (x-10))

(x-1)  (x-12) (x-10)

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Answer 2

Answer:

Here is the answer

Step-by-step explanation:

Hope it helped u