gjeniprobibaj gjeniprobibaj

02-06-2020
Mathematics

contestada

If α and β are the zeros of quadratic polynomial x2 + 3x - 2, find the value of α3 + β3.

Respuesta :

TheLazyNobita TheLazyNobita

02-06-2020

Answer:

[tex]\alpha + \beta = -3/1 = -3 \\ \alpha \beta = -2/1 = -2[/tex]

[tex]\alpha ^3 + \beta ^3[/tex]

[tex](\alpha + \beta )^3 - 3\alpha\beta (\alpha + \beta ) \\ (-3)^3 - 3(-2)(-3) \\ -27 - 18 = -45[/tex]

Answer Link

Otras preguntas

hey please help out because I need a more specific answer to this question. Any help will be greatly appreciated

Which of the following federal agency is most closely involved in workplace safety for both healthcare facilities as well as other types of work environments? O

4. The black lines represent the locations of ocean ridges. What pattern occurs in the bands of color on either side of the ocean ridges?

The lions roars when they are hungry. meaning of this proverb please

Identify the strategies for improving your memory

р -9/3=2(this is algebra 1)

help this is due in like 5 min

Evaluate the expression 12r + (s-t)^2 for r = 5, s = -3, and t = 7.

A dinner at a restaurant was advertised at $60 plus 18% tax. The TOTAL bill for this dinner was??

Mr. Mole left his burrow that lies 7 meters below the ground and started digging his way deeper into the ground, descending at a constant rate. After 6 minutes,