Respostas

  • Usuário do Brainly
2014-07-04T01:59:34-03:00
A)
(x+2)²= \sqrt{(x+2) ^{2} } =x+2

b)
(2x-3)²= \sqrt{(2x-3) ^{2} } =2x-3

c)
x²-6x+9
(x-3)²= \sqrt{(x-3) ^{2} } =x-3

d)
4x²+4x+1
(2x+1)²= \sqrt{(2x+1) ^{2} } =2x+1
2 3 2