Question

Factorise the following: 2-a-a²

Answer 1

hello mate ,

here is your answer,

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Answer 2

The answer to the factorisation is, (a+2) (1-a)

Given : The given algebraic expression is, 2-a-a²

To find : The factorisation of the given algebraic expression.

Solution :

We can simply solve this mathematical problem by using the following mathematical process. (our goal is to factorise the given algebraic expression)

Here, we will be using general algebraic method.

So,

= 2-a-a²

= -a²-a+2

= -a²-2a+a+2 [As, -a = -2a+a]

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

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

= (a+2) (1-a)

(This cannot be further factorised. That's why, this will be considered as the final result.)

Hence, answer to the factorisation is, (a+2) (1-a)