2 years ago

What are the solutions to this equation? 7x2 − 28 = 0

Mathematics

1 answer:

valentina_108 [34]2 years ago

8 0

Answer:

x = 2 or x = -2

Step-by-step explanation:

7x^2 - 28 = 0

7x^2 = 28

x^2 = 28/7 = 4

x = root(4) or x = -root(4)

x = 2 or x = -2

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