For all x, find the values of the constants a and b in:
Multiplied out i get:
I then move the 2x over to the other side of the equation and cancel the cubed x's giving me:
Then i'm stuck as i have two seperate variables attatched to a like power of x :?
Any help would be great!
Thanks for the reply.
My Bad. Was doing the above while watching Dexter :P Okay so the format is still different from the problems i've done before. Does it matter what variable i equate in terms of order?
Can i say:
And then go from there? I tried but it doesn't work out :?
Sorry that 5x in the original question should read x. Apologies.....
Okay that works fine with original question. Sorry for the typo thanks for the help! So basically you re-factor when you have an instance of more than one variable attached to a like power of x independently (to make it clearer) and it doesn't matter what order you equate i.e in the above i equated:
Previously i could always equate the first term on either side of the equal sign whereas this time i obviously couldn't.