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Question
Factorise the following:
x² + 4x + 4
Sum
Solution
x2 + 4x + 4 = x2 + 2 × x + 2 + 22 ...[a2 + 2ab + b2 = (a + b)2]
= (x + 2)2
shaalaa.com
Factorisation Using Identity a2 + 2ab + b2 = (a + b)2
Is there an error in this question or solution?
