math
posted by Melissa .
Determine the equation of the inverese of the quadratic function
f(x)=x^24x+3

x = y^2  4y + 3
y^2  4y = x3
y^2  4 y + 4 = x+1
(y2)^2 = x+1
y = 2 +/ sqrt(x+1)
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