Question

Factorisation of a²+2a+ab+2b can be done as :
Options :-
1). ( a+b) (a+2)
2). (a+b ) (b+2)
3). (a+2) + (a+b)
4). None​

Answer 1

Answer:

So , the correct answer is Option 3) (a+2)+(a+b)

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Answer 2

Answer:

(a+b) (a+2)

Step-by-step explanation:

$a{}^{2} + ab + 2a + 2b \\ = a(a + b) \: 2(a + b) \\ (a + b) \: (a + 2)$