Answer:
X = y^2 + 4y + 4
Y= (√X) -2
Explanation:
X = (Y+2)^2
X = (Y+2)(Y+2)
X = Y^2 + 4y + 4
√X = √(Y+2)^2 (taking the root of both sides cancels the exponent)
√X = Y+2
-2 -2
(√X) - 2 = Y
or
Y = (√X) - 2
x= y^2+4y+4
x= (y+2)(y+2)
x= y^2+2y+2y+4
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