arnoldjacob23 arnoldjacob23
  • 08-05-2020
  • Mathematics
contestada

What are the solutions to this equation? 7x^2 - 28=0

Respuesta :

kwokyy
kwokyy kwokyy
  • 08-05-2020

Answer:

2 and -2

Step-by-step explanation:

7x^2 = 28

x^2 = 28/7 = 4

x = [tex]\sqrt{4}[/tex] = 2 and -2

Answer Link
yeolove08 yeolove08
  • 04-06-2020

Answer: A. x= -2 and x = 2

Answer Link

Otras preguntas

how do you solve u = 3a/2 solving for a
In the mid 1800s, many Americans living on the east coast moved West in search of jobs building the railroad or for get rich quick ideas like the gold rush in
How old are Llama's?
what is the solution to the system of equations? 3x-2y=19 y=x-7 A) (6,-1) B) (33,26) C) (1,-6) D) (5,-2)
GDP is calculated as the total market value of all final goods and services produced in a country during a year. (1) Suppose that in 2019, geologists discover l
So I have a question in which I believe has two definitive answers What is: 8/2(2+2)
¿Cómo se dice "high school" en español? A.El horario B.El colegio C.La asignaturaD.La universidad
Select the past tense of do . They Choose... not know that their grandparents were coming today.
A psychologist was interested in the effect of attractiveness on perceived behavioral problems. Student teachers were asked to read a description of a girl who
5/2 rational or irrational