Math, asked by priyankaagarwal87111, 1 year ago

Factorise a-2b 2-a2

Answers

Answered by kashish1621

1

Step-by-step explanation:

(a + 2b)2 – a2 = ( a + 2b)2 – (a)2

= (a + 2b + a) (a + 2b – a)

= (2a + 2b) (2b)

= 2 (a + b) (2b)

= 2 × 2b (a + b)

= 4b (a + b)

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