Question

multiply
(z+3)(z^2+2z-3)

Answer 1

\[\tt{Foil\space this\space out}\]

Answer 2

how can you foil?

Answer 3

\[z*z^2+2z*z+z*-3+3*z^2+3*2z+3*-3\]

Answer 4

would it be z^3+6z^2 -18z-9

Answer 5

I got
-9 + 3 z + 5 z^2 + z^3

Answer 6

Multiply everything in the second bracket by z,
then multiply everything in the second bracket by 3.
Group like items together and add.

Answer 7

gotcha

Answer 8

F - First
O - Outer
I - Inner
L - Last
Ex:
=(x+y)(a+b)
=ax + bx + ay + by