y = 4 - x
Substitute to get
x2 + (4 -x)2 = 26
2x2 - 8x - 10 = 0
x2 - 4x - 5 = 0
(x + 1)(x - 5) = 0
x = -1 or x = 5
When x = -1, y = 5
When x =5, y = -1
johnmulu answered the question on March 8, 2017 at 05:30
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