si123
si123
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
VER TODAS LAS RESPUESTAS ( 21+ )
Otras preguntas
What is the relationship between an angle of elevation and an angle of depression in a right triangle?
an image resolution is measured in
a change in population of one organism results of the increase in grasshopper population decrease in Grass population change could have caused these changes
the sum of two integers always is an integer number. true or false
You had a credit card balance of $186, then you purchased books for $174. CDs for $35, and a pair of shoes for $99 with the credit card. You then made a payment
7. How do the roles filled by the females increase the survival of the species? Resource: 8. How do the roles Alled by the males increase the survival of the sp
In 2003, the population of an African country was about 15.5 million people, which is 2 million more than 3 times the population in 1950. Enter and solve an equ
Write each mixed number as an improper fraction and as a decimal. Then tell whether the decimal is terminating or repeating. -5 3/10
-1+2x=6x+11 how do I do this I’m so confused
Which sequence of events shows how Mesopotamia developed? a. People formed divisions of labor. The population grew. Agriculture was the basis of the society. b.
