Respuesta :

=ab+a+4b+4

Hope this helps (:

Answer:

Factor by grouping Ab+4+a+4b

[tex](b+1)(a+4)[/tex]

Step-by-step explanation:

Factor by grouping:

[tex]ab+4+a+4b[/tex] (1)

We have some common terms, the term a and the number 4: [tex]ab+a+4+4b\\a(b+1)+4(b+1)[/tex]:

Now, we have other common term, (b+1)

[tex]a(b+1)+4(b+1)\\(b+1)(a+4)[/tex]