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

18 is what percent of 20?

As an anthropometric term, __________ is a straight line, point-to-point horizontal measurement running fore-aft the body.

What year did cinema verite come out?

Greenhouse gases make up what percentage of Earth's atmosphere? A. less than 1% B. between 1% and 5% C. between 5% and 20% D. over 20%

I don't understand how to do this what equation do I set up (y=mx+b)

2.A family dines in a popular franchise restaurant. They plan to use a coupon that will give them a discount of 15% off of their total dinner bill, not includin

The selection says that Utterson and Enfield considered their Sunday walks "the chief jewel of each week." This phrase is an example of what kind of figurative

What was the Great Leap Forward ?

The side length of a cube is √7 cm. What is the volume of the cube? (Volume = length times width times height)

What did Mr.tanimoto see from the hillock at the rayon man's house ?