Question

factorise x³-3x²-x+3​

Answer 1

Take x^2 common from first two and after take -1common from last two.

We know that (a^2-b^2)=(a-b)(a+b)

Step-by-step explanation:

x^2(x-3)-1(x-3)=(x-3)(x^2-1)

=(x-3)(x-1)(x+1)