08-08-2020
Mathematics

contestada

13. If x + y + z-0 then x+y+z'is equal to:
(a) 3xyz
(b) - 3xyz
(c) xy
(d)-2xy

Respuesta :

devishri1977 devishri1977

08-08-2020

Answer:

a

Step-by-step explanation:

(x³ + y³ +z³) - 3xyz = (x + y + z )(x² +y² +z² - xy -yz - zx)

If x +y + z = 0, then

(x³ + y³ +z³) - 3xyz = 0 *(x² +y² +z² - xy -yz - zx)

(x³ + y³ +z³) - 3xyz = 0

(x³ + y³ +z³) = 3xyz

Answer Link

Otras preguntas

The latent heat of vaporization for water at room temperature is 2430 J/g. 1. How much kinetic energy does each water molecule that evaporates possess before it

Why do we round numbers?

Can someone please help me answer this?

Which of the following is not a rate? pls help bruuh i dont pay attention in these classes

i need help with this . i am so confused . i would like answers please!

Government formed under confederation best highlighted. By shays rebellion

W hich government officials do voters in Mexico and Brazil elect? (20 points plz help) A. judges and the president B. cabinet members and the prime minister C.

Explain the graph of this inequality. 5 > 9 - 2m. You must solve the inequality first.

Three teachers equally shared StartFraction 4 Over 5 EndFraction of a flat of paper that was donated to the school. What fraction of the flat of paper did each

PLEASE HELP I NEED THIS NOW