Question 1095507
x^2 + y^2 = 8
x - y = 2

My answer is (1 + sqrt5, -1 + sqrt5) and (1 - sqrt5, -1 - sqrt5)
The textbook's answer is exactly the same, except that instead of sqrt5 it's sqrt3

How did I get sqrt5 instead of sqrt3? I know it must be some silly mistake, but I've looked and looked and my brain's about fried.
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No way to know how you got that, unless you show how you got it.