Question

simplify again:
x^2+4x+4/x^2-4

Answer 1

(x+2)/(x-2)

Answer 2

x^2+4x+4/x^2-4
=((x+2)/(x+2))/(x+2)/(x-2)) then you cancel out the numerator and denominator for (X+2)

=(x+2)/(x-2)

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Answer 3

x^2+4x+4/x^2-4=(x+2)(x+2)/(x+2)(x-2)
=(x+2)/(x-2)