Quote:
Originally Posted by StanAjax
It says there's an error and wants to add a multiplication sign between 2 and the opening bracket. When I click on OK, it answers 288, which is the correct answer.

Which is why people keep getting 2. This "rule" that you have to multiply the number outside the bracket before the other multiplication/division is simply not real. Technically speaking 2(9+3) is not a real term. There is no operator between the 2 and the bracketed components, so there is no way to know what operation you have to perform. It's simply a common shorthand convention that you reduce 2*(9+3) to 2(9+3) with multiplication implied.