0
Anonymous
To solve for x:
x2 = 5x + 2
x2 - 5x = 2
x2 - 5x + (5/2)2 = 2 + (5/2)2
(x - 5/2)2 = 8/4 + 25/4
x - 5/2 = ± √(33/4)
x = (5 ± √33) / 2
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23
7
x = -1.2, y = -3
-5x+50 = 25 -5x = 25-50 -5x = -25 x = 5
172=x