factorise : x^3-2x^2-x+2
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The given equation is x^3-2x^2-x+2
take the x^2 common from first two terms
x^2(x-2)-1(x-2)
(x^2-1)*(x-2)
Now we can factorise the (x^2-1) as
x^2-1 = (x-1)*(x+1)
Therefore, the equation can be written as
(x-1)*(x+1)*(x-2)
Answer:
(x^2 - 1) (x - 2)
Step-by-step explanation: