SOLUTION: Solve each equation xˉ² = 4

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Question 150541: Solve each equation
xˉ² = 4
Answer by mangopeeler07(462) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E-2=4 the - sign means to invert both sides, so set up a new equation:

%281%2Fx%29%5E2=1%2F4

Elminate the numerators, since they are the same:
x%5E2=4

Square root both sides:
x=2

Therefore, the fraction (1/x) becomes (1/2), making the original x in x^-2=4
come out as (1/2).

Answer:
x=1%2F2