Answer:
x = y^2 + 4y + 3
Explanation:
f(x) = ( x + 2 )^2 - 1
y = ( x + 2 ) ^ 2 - 1
y = ( x^2 + 4x + 4 ) - 1
y = x^2 + 4x + 4 - 1
y = x^2 + 4x + 3
(switch from y to x and x to y)
I hope that helps!
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