(07-10-2011, 03:21 AM)BlackChaos Wrote: [ -> ]First of all, you need simplify the equation:
x^2 + 3x + 2 = x^2 + ax + 2x + 2a
Then, we bring the variable to one side and the numerical values on the other side by transposing them:
x^2 + 3x - x^2 - ax -2x - 2a = -2
By simplifying further, we get:
x - ax = -2
-x + ax = 2
Now we try to bring x to right hand side:
a = (2 + x)/x
This is the solution for a in terms of x. If you have the value of x, then you can find the value of a as well.
Hope this helps. 
Allthough this answer wos incorrect it still made my brain hurt xD I've never been great at maths.
I was in Algebra 1 but I decided that I was more interested in the Calculators (TI89+ or something like that)
So I got taken out.
Is it just me or is this hard?
(07-20-2011, 10:49 PM)Bad Meets Evil Wrote: [ -> ]Is it just me or is this hard?
It is sort of hard.
Not that hard though.. I just couldn't concentrate ;)
I find it as easy as addition and multiplication, it's all it really is. (+/-, divide/multiply)
If you know the basic concepts like BODMAS and arithmetic, then it isn't as hard as it seems.
(07-20-2011, 10:54 PM)Hazardous Wrote: [ -> ]It is sort of hard.
Not that hard though.. I just couldn't concentrate ;)
Well, I'm only in 8th grade. So we haven't started this yet.
(07-20-2011, 11:25 PM)BlackChaos Wrote: [ -> ]If you know the basic concepts like BODMAS and arithmetic, then it isn't as hard as it seems.
"BEDMAS"? You mean
(07-21-2011, 12:12 AM)Ace Wrote: [ -> ]"BEDMAS"? You mean
There are many variations of the rule: BEDMAS, BIDMAS, BODMAS, BERDMAS, PERDMAS, and BPODMAS are some of them. I was taught BODMAS. The "O" stands for Order instead of Exponentiation.
Well it is the "Exponents" after the "Brackets" so I find it easier to remember that way. Never knew there were other variations.