(a) 4x2 + 4x + 1
Write it as a perfect square
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4x^2+2x+2x+1
2x(2x+1)+1(2x+1)
(2x+1)(2x+1)
(2x+1)^2
2x(2x+1)+1(2x+1)
(2x+1)(2x+1)
(2x+1)^2
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