Lv 31,083 points

# baby

Questions25

Prove this identity:

x4+y4+z4-2x2y2-2y2z2-2x2y2=(x+y+z)(x+y-z)(x-y+z)(x-y-z)

Hey i want to find the piano sheete free for Apoologize One Republic Timbaland! Does anybody of you have it or tell me sites that can download FREE!!! tHANKS

• ### another difficult question???????

Z=a+bi with a,b real Z(exept from 0)

I there is v to natural(N) and

(a+bi)^v +(b-ai)^v=0

please prove that (1+i)^v is imagine

If ax2+bx+g with a not 0 and abg belong to real numbers(R) and dont have solutions in R can you prove that for xy(R)

(ax2+bx+g)(ay2=by+g)>0

• ### Can u solve this?

|3*|x|-4|=2

Explain me the way you found it!!!

• ### need some advice and suggestions???

i would like to download free a program that can compress mp3 more and get less space!!! For example from 6.000kb make it 2.000!!! I would really appreciate your advices!!!

• ### i want some advice and suggestions???

i want to download a program that can optimise the sound! With that program you can cut the sound, add others e.t.c. If you know that i would really appreciate that!

• ### How can i find a site like that with Greek people???

I would be grateful if you can response to me soon!

• ### Can you help me solve this problem?

(x-1)/99+x/100=(x+1)/101+(x+2)/102

i will give the best 10 points for the best answer.

• ### Can you help me solve these???

1) |x-2|/2+1=|4-2x|/3

2) ||x|+x|-||x|-x|=3x

• ### Can you tell me the Mediteranean countries?

What does the name "Helen" means?

• ### Who know french? I have an excercise!?

Here it is:

Completez les sentences:

1. Elle a moins......memoire que lui.

2. Elle est sortie.....dire au revoir.

3. Depuis longtemps il reve...une maison.......les Alpes.

4. Ne pense pas.....cette affaire.

5. Deux eleves..........trois sont enrhumes.

6. J'ai trouve quelque chose......interessant.

7. Ma tasse.....cafe est.....porcelaine.

8. Elle roule......150Km.....heure.

9......mon arrive a Paris j'ai telephone a mes amies.

10.Il apprend.....jouer......violon.