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

Could someone help me please. I need it fast

△JKL has vertices J(−3,5), K(−1,0) and L(8,−4). Which of the following represents the translation of △JKL along vector <−4, 7> and its reflection across t

What’s the percentile rank of a score of 64?

In Twelfth Night, Act III, which new conflict is created by Antonio's attempt to solve the conflict between Andrew and Viola? Viola is arrested for interferin

Evaluate whether a sea beeze could occur night

A meteor moves into Earth's atmosphere at a speed of 35.00 km/s. It is slowed by friction with Earth's atmosphere by 0.02 km/s before it reaches Earth's surface

Why did Britain want to prevent India's economy from prospering?

Reverse masking forms a soft edge on the panel. True False Table of Contents (Auto body)

What countries make up the Central Asian Republics?

Hellp meeeeeeeeeeeeee