lisapressley2001 lisapressley2001

03-01-2017
Mathematics

contestada

8. Find all the real fourth roots of 256

Respuesta :

surjithayer surjithayer

03-01-2017

x^4=256
x^4-256=0
(x^2)^2-(16)^2=0
(x^2+16)(x^2-16)=0
either x^2+16=0
it gives complex roots.
or x^2-16=0
or x^2-4^2=0
(x+4)(x-4)=0
either x+4=0,x=-4
or x-4=0
x=4

Answer Link

Otras preguntas

criticaly, evaluate the role of attitudes in initiating and building sustainable relationship

A cup of milk has 8 grams of protein. How much protein is in 2.5 cups of milk

how do i factor 54a + 24b

Which is a true statement about federal judges? They are appointed by the Senate. They serve five-year terms. They are approved by the Supreme Court. They serve

A is a horizontal stem at or just beneath the surface of the ground which can give rise to roots or stems.

A percent composition is a percentage of a compound in a sample expressed as a fraction of the whole sample. a. True b. False

Select all that apply. Mark each statement if it describes daily life in ancient Pompeii. a. The wealthy people sent their slaves to get water from the river ev

which phrase is one way to describe stress ? A a strain on one's body or mind B a past emotional trigger C a distressing physical reaction D a denial response t

Select all that apply. 2. (3 pt) How did the protests change during the 1960s? a. Women and Mexican Americans joined other groups to protest inequality. b. Co

What is a good product to promote?