22-02-2017
Mathematics

contestada

What are the solution(s) of x2-4=0

Respuesta :

wolf1728 wolf1728

22-02-2017

Is that x^2 -4 = 0?
Then the two solutions are x = 2 and x = -2

Answer Link

charlottekrist charlottekrist

22-02-2017

First you add 4 on both sides
X^2=0
Then you take square on both sides
X=+- the square root of 4
Simplify that
X=plus or minus 2

The answer can be either -2 or +2 (which is just 2)

Answer Link

Otras preguntas

What are ten facts about the Treaty of Versailles?

Describe the key characteristics of a mixture using melting point, substances, composition, range, physical process, separated

Does the process of binary fission take place in multicellular organisms?

Thirteen is seven more than one fifth of a number //how do you right that as an equation?

What is 37 and 1/2 simplified?

How might surveying a different number of people or different population of people possibly change the percentages that you calculated?

What is created from mitosis in animals? a. two identical nuclei b. egg and sperm cells c. gametes that are identical d. four identical nuclei

One reason the united states supported the creation of the united nations was to

does 9 go into 123 for math

Foods labeled "fat free" can actually contain less than 0.5 grams of fat.