brigitteg3 brigitteg3
  • 23-05-2020
  • Mathematics
contestada

How many real roots does the following equation have?
x4 -81 = 0

Respuesta :

salatulmaghrib
salatulmaghrib salatulmaghrib
  • 23-05-2020
x^4-81 =
(x^2-9)(x^2+9) =
(x+3)(x-3)(x^2+9)

There are two real roots (at x=3,-3).
Answer Link
hbrewer72
hbrewer72 hbrewer72
  • 23-05-2020

Answer:

Find roots of x4−81=0 by solving for x. x=3,−3

Step-by-step explanation:

Answer Link

Otras preguntas

what is amihabiland examples​
plz help is this awser right and what is the awser
Please help with this Spanish assignment.... GREATLY APPRECIATED
How does the size of a population affect an ecosystem? Is it possible to have too high or too low of a population, and what would happen if that occurs?
Bacteria provide genetic engineers with __ and __
Need #9 on this one
in rhombus ABCD the measure in inches of AB is 3x+2 and BC is x+12 Find the number of inches in the length of DC
How does changing the concentration of the reactants change the parts of a rate law? It changes the rate, R. It changes the rate constant, k. It changes the
Determine the intercept of the line. ​
Why does Gopnik argue that babies learn so much in such a short period of time?