BelleMickey
BelleMickey BelleMickey
  • 09-01-2017
  • Mathematics
contestada

what are the real and complex solutions of the polynomial equation x^3-8=0

Respuesta :

ethanfcarr
ethanfcarr ethanfcarr
  • 09-01-2017
this is a difference of two cubes equation. To solve it, use this formula:

(a^3-b^3) = (a-b)(a^2+2ab+b^2)

or

x^3-8 = (x-2)(x^2+4x+4)


Answer Link
olemakpadu
olemakpadu olemakpadu
  • 09-01-2017
x³ - 8 = 0

x³ = 0 + 8

x³ = 8

Take the cube root of both sides

∛x³ = ∛8

∛(x*x*x) = ∛(2*2*2)

x = 2

Hope this helps.
Answer Link

Otras preguntas

Line 5-11 Why does the author choose not to reveal the contents of Juan's letter to Mariana??
WILL give BRAINLIEST Tony's Albert's Credit card finance is based on the average-daily-balance method with new purchased included. His monthly periodic rate is
In her analytical essay, Kimi wants to quote the following words from "The Children of the Drug Wars." A vast majority of child migrants are fleeing not povert
A student sets up a reaction and calculates a possible yield of 55.9g of silver. If the student preforms the reaction and the mass of actual silver obtained is
who was the first sui ruler
what might happen if he federal government makes cuts health care spending
Julia wrote a linear equation in standard form as –6x – 3y = 10. Arthur noticed that the equation was not written in standard form and wants to tell Julia how t
Philip dead 14 sit-ups on Monday 21 sit-ups on Tuesday and 28 sit-ups on Wednesday if the pattern continues how many sit-ups will he do on Friday
what is the greatest common factor (gcf) for 26 and 78?61326 32
15 yard gain in integer