Factor 49w^2+28w+4

Math
49w2+28w+4
Rewrite 49w2 as (7w)2.
(7w)2+28w+4
Rewrite 4 as 22.
(7w)2+28w+22
Check the middle term by multiplying 2ab and compare this result with the middle term in the original expression.
2ab=2⋅(7w)⋅2
Simplify.
2ab=28w
Factor using the perfect square trinomial rule a2+2ab+b2=(a+b)2, where a=7w and b=2.
(7w+2)2
Factor 49w^2+28w+4

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