Question

how do you solve foil ?

Answer 1

(a+b)(c+d) = ac + ad + bc + bd

Answer 2

can you solve this so i can have a better understanding ? (x+2)(x-1)

Answer 3

Alright, so
\[(x+2) (x-1)\]
\[(a+b) (c+d) = ac + ad + bc + bd\]
\[(x+2) (x-1) = x ^{2} -1x +2x -2\]
\[x ^{2}-1x +2x -2 = x ^{2} +x -2\]
Final Answer is \[x ^{2}+x-2\]

Answer 4

thank you :)