arnoldjacob23 arnoldjacob23

08-05-2020
Mathematics

contestada

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

Respuesta :

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

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yeolove08 yeolove08

04-06-2020

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

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