Hi, I was just doing past papers today and I came across this loan repayments question. The problem isn't the question itself, it's the solution in the book.
It factorises: (3 x 10^6)(1.12^n) - (4 x 10^6)(1.12^n) + (4 x 10^6)
into: =(1.12^n)[(3 x 10^6)-(4 x 10^6)] + (4 x 10^6)...
Hi, I was just wondering if anyone would be able to give me some advice on the Industrial Chemistry elective. My situation is that our chem's teacher left last year, and the new teacher has never taught chemistry before. He's not a bad teacher, but me and a friend thought that we would have the...