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Factorise: 4x^2+4xy+y^2-2^2
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18 votes
Factorise:
4x^2+4xy+y^2-2^2

User Josh Kodroff
by
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1 Answer

10 votes

Answer:

Explanation:

4x^2 + 4xy + y^2 = (2x + y)^2

and if we assume that 2x + y = A and because 4 = 2^2

A^2 - 2^2 = (A-2)*(A+2) .

User Breon
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