Question

factorise: a³+a-3a²-3​

Answer 1

Answer:

(a^2+1)(a-3)

Step-by-step explanation:

a^3+a-3a^2-3

=a(a^2+1)-3(a^2+1)

=(a^2+1)(a-3)

Answer 2

Answer:

Refer to the attached image...