Math, asked by alok00785, 4 months ago

Factorise by grouping method :
5. a3 + a - 3a2 – 3

Answers

Answered by kmsherakhanegmailcom

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)

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