Question

Help please im not sure im understanding this
(x-4)(x+3) I have to simplify it

Answer 1

Split the expression into four parts (FOIL)
1) x * x = x ^2
2) -4 * x = -4x
3) 3 * x = 3x
4) -4 * 3 = -12

Then add everything together:

\[x ^{2} - 4x + 3x - 12\]
\[x ^{2} - x - 12\]