x² -(Sum of the roots)x + (products of the root) = 0
]]>MathsIsFun, I'll try remember the:
ax² + bx + c = 0
x = (-b ± √(b² - 4ac) / 2a
Thanks a lot guys, it's much appreciated!
]]>The other way is to use the quadratic formula. You can see that in action here: http://www.mathsisfun.com/forum/viewtopic.php?id=883
]]>Sorry if I've been too complicated or patronising.
]]>A rectangular room is 3 meters longer than it is wide. If the area of the floor is 88 square meters, what is the length and width of the room?
The problem looked a little like a joke, but just for entertainment - I tried solving it. Half an hour later, I had absolutely no idea where to go. (Obviously after a couple of minutes, I couldn't help noticing the answer, but that's not what I am after).
Could anyone please tell me how to solve this "tricky" problem.
BTW, I've had the problem at "(width * 3) + ( width * width) = 88" but I could get no farther.
Thanks for putting my mind to rest.
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