Question

pessoal preciso dessa resposta (2x + 1)² + 2x + 3

Answer 1

$(2x+1)^{2} +2x+3 \\ \\ 4 x^{2} +2x+2x+1+2x+3 \\ \\ 4 x^{2} +6x+4$

Answer 2

= (2x + 1)²  + 2x + 3
= 4x² + 2.2x.1 + 1² + 2x + 3
= 4x² + 4x + 1 + 2x + 3
= 4x² + 6x + 4