Question

3-Simplifique as expressões:
a) (x + y)2 – x2 - y2 =
b) (x - y)2 – (x + y)2 =
c) (3x + y)2 =
d) ( x3 – 1).( x3 + 1) =​

Answer 1

Explicação passo-a-passo:

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