Question

(x-3)(x+4)

Answer 1

Oh yes, that is foil.

Answer 2

First, let me tell this to you:

\(\Rightarrow (a + b)(c + d) = a(c + d) + b(c + d)\)

Answer 3

If you get it tell here, it's easy.

\(\Rightarrow (x - 3)(x + 4 ) = x(x + 4) - 3( x+ 4) \)

Can you distribute and do the rest?