Question

Help
i need to find it in this format
__ for ____

Answer 1

`(2)/(a - 2) - (2)/(a + 2) = (2(a + 2) - 2(a - 2))/((a - 2)(a + 2)) = (2a + 4 - 2a + 4)/((a - 2)(a + 2)) = (8)/((a - 2)(a + 2))`

`a - (3a + 2)/(4) = (4a - (3a + 2))/(4) = (4a - 3a - 2)/(4) = (a - 2)/(4)`

`1 - ( (2)/(a - 2) + (2)/(a + 2) ) * (a - (3a + 2)/(4) )`

`= 1 - (8)/((a - 2)(a + 2)) * (a - 2)/(4)`

`= 1 - (2)/(a + 2) = (a + 2 - 2)/(a + 2) = (a)/(a + 2)`

a/(a + 2) for a < -2, -2 < a < 2, a > 2