Question

Urgente, Resposta com Cálculos... PFVR.

Answer 1

A) ( b + 3 )² = b² + 3² + 2*b*3
B) ( a + 2 )² = a² + 2² + 2*a*2
C) ( x + 4 )² = x² + 4² + 2*x*4
D) ( 2b + 5 )² = 2b² + 5² + 2*2b*5
E) ( b - 2 )² =b² + 2² + 2*b*-2
F) (3b - 4 )² = 3b² + 16 + 2*3b*-4
G) ( 2a - 2 )² = 2a² + 2² + 2*2a*-2
H) ( x - 3 )² = x² + 3² + 2*x*-3