Quote:
Originally Posted by svandamme
48÷2(9+3) IS equivalent to 48÷2x(9+3)
the lack of an X does not mean it's connected any different then if there is an x
|
2( ) means 2-of whatever is within the parenthesis. The 2 cannot be involved in any other operation in the equation. It is strictly multiplication of whatever total is within the parenthesis .. and ONLY because it lack the "x" which would separate it from the parenthesis.
While I don't have any math book on hand to prove ANY operation's sequence, I know for certain that this is a hard rule we were taught .. over & over through repetition. (Our teacher, Peter Cole, was an actual mathematician who only taught so that he could have a more flexible surfing schedule
)