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Homework Statement
Just wondering if there is a set rule here. What I'm not sure about is which side moves to the other.
Homework Equations
y = x^2
y = 8 -x^2
The Attempt at a Solution
x^2 = 8 - x^2
or
8 - x^2 = x^2
Option 1: Move left to right
= 8 - 2x^2
Option 2: Move right to left
= 2x^2 - 8
Which method are you supposed to use?
When finding zeroes you'll get the same answer either way, but sometimes (i.e. integrating) it seems like you'll get different answers depending on which way you went...
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