Find the limit by rewriting the fraction first.\\ \(\lim_{(x,y)\to(2,-4)\atop y\neq -4,\ x\neq x^2} \frac{y+4}{x^2y - xy + 4x^2 - 4x}\) \(\lim_{(x,y)\to(2,-4)\atop y\neq -4,\ x\neq x^2} \frac{y+4}{x^2y - xy + 4x^2 - 4x} = \square\) (Simplify your answer.)
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Find the limits by rewriting the fractions first. $$\lim _{(x, y) \rightarrow(2,-4) \atop x \neq-4, x \neq x^{2}} \frac{y+4}{x^{2} y-x y+4 x^{2}-4 x}$$
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