livschweitzerox9s18 livschweitzerox9s18

28-11-2017
Mathematics

contestada

Find all real and complex roots of the equation below x^4-81=0

Respuesta :

konrad509 konrad509

16-08-2018

[tex] x^4-81=0 \\
(x^2-9)(x^2+9)=0\\
(x-3)(x+3)(x^2+9)=0\\
x=3 \vee x=-3 \vee x=3i \vee x=-3i [/tex]

Answer Link

Otras preguntas

A contractual arrangement in which one entity grants the purchaser the exclusive right to use the tradename, formulas, and product rights within a specific geog

What is the difference between 20 and -60

The sum of the two numbers is -1. When twice the first number and four times the second number are added, the sum is -10. What are the two numbers?

find an equation of the line passing through the point (-4,-6) that is parellel to the line y=-2/9x-1

Multiply or divide the following measurements. Be sure each answer you enter contains the correct number of significant digits. 93.4 g/mL x 20. mL = _________g

Walt Biggs is general manager at a plumbing contractor. He is currently working on designing the procedures and policies the company will use as it schedules it

What are the charges of each atom now? (Sodium and Chlorine)

Johanna is participating in a study on social contacts and subjective well-being. Each evening around 6 p.m., Johanna is supposed to record in a journal the nu

A 620 kg car is traveling at 24 m/s on horizontal ground when it starts up a 30 m high hill. The engine can produce up to 144,000 J of work during that time. Wh

Beta Corp., a gaming software company, recently launched a new game. The target audience identified by the company was the age group of 12–18 years. The adverti