factorizacion de trinomio perfecto

x2 + 2x + 1
= (x)2 + 2(x)(1) + (1)
= (x + 1)2



x2 – 2x + 1
= (x)2 – 2(x)(1) + (1)
= (x - 1)2


x2 + 4x + 4
= (x)2 + 2(x)(2) + (2)2
= (x + 2)2


x2 - 4x + 4
= (x)2 - 2(x)(2) + (2)2
=(x - 2)2



x2 + 8x + 16
= (x)2 + 2(x)(4) + (4)2
=(x + 4)2