Question

(p - q + 6) . (4p + 5q) =

Answer 1

Resposta:

4p^2 - 5q^2 + 1qp + 24p + 30q;  

Explicação passo-a-passo:

(p - q + 6) . (4p + 5q) =

p . (4p +5q) - q . (4p +5q) + 6 . (4p +5q) =

4p^2 + 5qp - (4qp + 5q^2) + (24p + 30q) =

4p^2 + 5qp - 4qp - 5q^2 + 24p + 30q =

4p^2 - 5q^2 + 1qp + 24p + 30q;