Question

Qual é a resposta (xy-7) (xy+6)

Answer 1

(xy-7)(xy+6)
=xy^2+6xy-7xy-42
=xy^2-xy-42

Resposta: xy^2-xy-42

Answer 2

 (xy-7) (xy+6) = xy² +6xy-7xy-42
 =xy² -xy-42