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Select the correct answer. What are the solutions to the equation x2 − 1 = 399? A. B. C. D.

Select the correct answer. What are the solutions to the equation x2 − 1 = 399? A. B. C. D.
asked 221k views
3 votes
Select the correct answer. What are the solutions to the equation x2 − 1 = 399? A. B. C. D.

asked
User Pitabas Prathal
by
8.2k points

1 Answer

3 votes

Answer:

x = 20

Explanation:

x² − 1 = 399

x² = 400

x = 20

answered
User Rohit Raghuvansi
by
7.3k points
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