SOLUTION: solve X square = 20

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Question 220690: solve X square = 20
Answer by tutor_paul(519) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2=20
Take the square root of both sides of teh equation. Note the square root of a number can be positive or negative:
x=+/-sqrt(20)
Simplifying the radical a little:
x=+/-2(sqrt(5))
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tutor_paul@yahoo.com