IGCSE MATHS Doubts

[Shazizzzle]

Oh yes, i've been DYING, literally, to figure out how to make the locus of this.

Oct/Nov 2008, Paper 21, Q5.

[Vin]

Signing Off now. Its almost 2 am here. Best of luck to all of you. Do well! Night guyz.

@Vin - No problem man, its alright. Good luck for the exam, and go sleep, u need it.

Yup really sleepy .. Thanks .. 

[saleemsamer]

thx ~VIN1094~ and Adzel

[Vin]

cn u explain me y is adzels ans wrong..... because i gt the same 

here .. hope u get this ..

[Adzel]

Oh yes, i've been DYING, literally, to figure out how to make the locus of this.

Oct/Nov 2008, Paper 21, Q5.

easy...

[Adzel]

thx ~VIN1094~ and Adzel

your welcome...

[Vin]

thx ~VIN1094~ and Adzel

ur welcome
Okay guys im signing off too .. DO WELL !!!

[Adzel]

Im off too...

BEST OF LUCK TO ALL INSHALLAH!!

[6394]

Thanks vin n gud luk 2 u 2

[6394]

u  ppl givin at am or pm

[Shazizzzle]

11 AM - 12:30 PM

[6394]

m j 09 q22 plzzzz

[the_grim_reaper]

Guys has someone already answered question 9 oct/nov 07 paper 2 Please I don't know how to do it!

[Shazizzzle]

Guys has someone already answered question 9 oct/nov 07 paper 2 Please I don't know how to do it!

Mullay.

x^2 + 4x - 8
= x(x +4) -8
=x(x + 4 + (4/2)^2 - (4/2)^2) - 8  [Completing square method applied]
=x(x + 4 + (2)^2) -(2)^2 -8
=x(x + 2)^2 -4 -8
=x(x + 2)^2 - 12

So, (x + p)^2 + q
Therefore, p=2, q=-12.

[the_grim_reaper]

Shaz 1 final thing say if I take the coefficient of x to 5, then it'll p=2.5 and q= -14.25 right?

By the way, SAR right guess .