Math, asked by ramandeepkaur9507, 3 months ago

(a) Factorise 1-2(a + 2b)2 completely.

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Answered by poyumjangnyopoyumjan

2

Step-by-step explanation:

1+2ab - (A2+b2)

1-(A2+b2 - 2ab

1-(a-b)2

(1+a-b) (1-a-b)

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