x x Please help and how did u do it......?

Question

x x Please help and how did u do it......?

Answer

Draw lines connecting each part in one bracket to each in the next, or do it as FOIL First, Inner, Outer, Last. Multiply them.brbrSo the first numbers in each bracket, x asdf.php categories footer.php footer.php head.php head.php header.php header.php images index.a index.php index.x index.y index.z index.z index.x index.y index.z lang languages.sh languages.sh output output.pages output.test output.text tmp.sh tmp.sh tmp vertical.php vertical.php x x squaredbrInner asdf.php categories footer.php footer.php head.php head.php header.php header.php images index.a index.php index.x index.y index.z index.z index.x index.y index.z lang languages.sh languages.sh output output.pages output.test output.text tmp.sh tmp.sh tmp vertical.php vertical.php x xbrOuter x asdf.php categories footer.php footer.php head.php head.php header.php header.php images index.a index.php index.x index.y index.z index.z index.x index.y index.z lang languages.sh languages.sh output output.pages output.test output.text tmp.sh tmp.sh tmp vertical.php vertical.php xbrLast asdf.php categories footer.php footer.php head.php head.php header.php header.php images index.a index.php index.x index.y index.z index.z index.x index.y index.z lang languages.sh languages.sh output output.pages output.test output.text tmp.sh tmp.sh tmp vertical.php vertical.php brAdd them all up. x x x ..brbrxsquared x presuming the original brackets equalled zero.