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When a polynomial is divided by (x-3)(2x+1), the remainder is (3x-1) Find the remainder when P(x) is divided by (2x+1) does anyone know how to solve this? I tried p(-1/2) = 0 + 3*(-1/2) -1 = -5/2 but that's not the right answer

I got a quadratic equation and got these answers :x= 63*26*, 18*26*, 243*26*, 198*26* (nearest min) is this right?

My friend showed me this equation which i couldn't do: [cos(x)]^2 +7sin(x)cos(x) = 3 (sorry I dont know how to use latex) I tried using double angle formula but I cant find a solution can someone please show me how to do it? thanks!

papermate inkjoy ftw

Sinx = -Cosx (sinx)/(cosx)=-1 tan x = -1 x = -45, AND -45+360 = 315

y = (4+x)m +3 if x = -4, m will be eliminated and y=3 therefore (-4,3)

lol nm, wbu

lol hi, katIE not katE right?

thanks everyone, id rep you all but my rep button is gone :(

do all schools do it at that time?

Hi everyone, I was just wondering, when do we choose whether we want to do extension 2 maths or english for the hsc? Im guessing its at the end of year 11

Re: 2012 Year 9 &10 Mathematics Marathon for i) 1/[n(n+1)] (latex wont work for me sorry) screw ii) but it looks familiar

Could you explain your first sentence? Sorry I don't understand

Hi all, I'm having trouble with this polynomial question: After I write out all the root-coefficient relationships I'm stuck. Can someone please show me how to solve the question using only root-coefficient relationships (without doing long division or "inspection") Thanks :)

Ok yep the negative works in other questions. Thanks for your help :)

Are you sure there should be a negative outside the bracket? The one i copied in class didnt have a negative

Wait so is a^3 +b^3 + c^3 = -(B/A(a^2+b^2+c^2)+C/A(a+b+c) + 3D/A) where A B C D are the coefficients of a cubic?

Cos we're both cool :P

Thanks :) I lol'd the first time I saw it as well :P I followed your method and got the same line as you in the end, but can you evaluate it? When I evaluated it I got -87

Hi everybody, For question a) I cannot figure out how to properly rearrange the question so that I can sub in numbers. Ironically, I managed to do b) The answer in the textbook is 9 Thanks!