Simplify the following expression- a-a2 - 4 - 8-a2 - 2a -a2 - 2a-4 -a - a - 8-a - 2

=(aa^2 4 8a^2+2a)×a^2 2a4 a =1a+2×(aa 2 8a)×a(a 2)4 a =(a^2 8a+16)(a)(a 2)a(a^2 4)(4 a)= (a+4)a+2 =(aa^2 4 8a^2+2a)a^2 2a4 a+a+8a+2 = a ...

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Question

Simplify the following expression:
$(\frac{a}{a^{2} - 4} - \frac{8}{a^{2} + 2 a}) \times \frac{a^{2} - 2 a}{4 - a} + \frac{a + 8}{a + 2}$

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