Question

a^2+4b^2-4ab-4c^2---factorise

Answer 1

• a² + 4 b² - 4 ab - 4 c ²

    = (a - 2 b)² - (2 c )²

Using a²-b²= (a+b)(a-b)  , we get

   = ( a - 2 b + 2 c)(a - 2 b - 2 c )

Thank u.

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Answer 2

Thank you for helping..