# x(60-x)-96

• Mar 31st 2012, 08:05 AM
davellew69
x(60-x)-96
I have x(60-x)-96 =x^2+60x-96

to get the answer I know I have to expand out from the brackts, however I make it -60x not 60x, I`m stuck on what I am doing wrong

Dave
• Mar 31st 2012, 08:07 AM
skeeter
Re: x(60-x)-96
Quote:

Originally Posted by davellew69
I have x(60-x)-96 =x^2+60x-96

to get the answer I know I have to expand out from the brackts, however I make it -60x not 60x, I`m stuck on what I am doing wrong

Dave

$x(60-x)-96 = (60x-x^2)-96 = -x^2+60x-96$
• Mar 31st 2012, 12:24 PM
davellew69
Re: x(60-x)-96
thank, as soon as I saw your reply it all clicked. cheers