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hmm y is the chemistry forum so quiet? anyway more qns 'M' stands for mol/L right?

I have more problems... hmm i didnt expect this to be turned into a hot thread... but oh wellz ummm people should ask polynomial questions on this coz i feel bad when its just me asking... so yeah how would i completely factorize the expression a2(b+c) + b2 + c2(a+b) + 2abc when (a+b)...

Lol does everyone know Adrian lim? he came from Christian brothers though ahh welllz

Why is it the sum and product of roots equal 0?

more.... I'm srsly starting to feel stupid

and yet ur so smart, its not the school that counts its u

why do i have to be so stupid

LOL why do u guys all have to be so smart? what school do u guys go to?

Can someone work B out please?

hey how does that dividing triangle thing work?

ahh tyty Iyounamu

what about the triangle one?

More questions...

So the sum of roots is the correct answer?

i dont get this question either...

More questions :D What property is common to all equations of the form x 3 + mx + k = 0?

hmm I have a problem with this question In the figure, BA and DC are produced to meet at X. <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p> a) Prove that Triangle XAC~ Triangle XDB. b) Hence show that XA.XB = XC.XD If XA = 4cm, AB = 5cm and...

hmm i have another quesiton to add it's pretty easy but i cant seem to prove it... The figure shows a semicircle with diameter AD. If the chords AB=BC=CD, show that BC||AD its kinda like a half hexagon

Hi all, I'm doing concentration questions and i kind of need some help with some stuff on water. the questions are. 1) What volume of a) 10M hydrochloric acid isneeded to make 5L of 0.1M solution? (I dont get what to do in this question...) b) 18M sulfuric acid is needed to prepare 2L...

whats the reason though?