Question

FAtorando a expressão 64a²-49b² temos
A) (8a-7b)²
B) (8a-7b)(8a-7b)
C) (8a+7b)²
D) (8a+7b(8a-7b)

Answer 1

se fatorarmos a D teremos 8a^2-49b^2

Answer 2

$64a^2 - 49b^2 \\ \\=\ \textgreater \ (8a+7b).(8a-7b)$



Resposta letra d) (8a + 7b).(8a - 7b)