Question

Observe as duas listas de expressões:
A) x^2 + 6x +9
B)x^2-9
C)x^2-6x+9
D) x^2+4x+3

1) (x+3)(x-3)
2) (x+3)(x+1)
3) (x-3)^2
4) (x+3)^2

As expressões são equivalentes: ???

Answer 1

a4, b1, c3, d2 sao essas as equivalencias