Question

Factorise :
2 +
2 + + ?​

Answer 1

Answer:

your questions is in completed Dear

Answer 2

The given expression 2x

2

−x−21 can be factorised as follows:

2x

2

−x−21=2x

2

−7x+6x−21=x(2x−7)+3(2x−7)=(x+3)(2x−7)

Hence, 2x

2

−x−21=(x+3)(2x−7)