(4a 2)(6a2 − a 2) July 8, 2019 16 32 64 128 4a 2 )( 6a2 a 2 6) ((4a)/(2 - a) - a) / ((a + 2)/(a - 2)) 6a ^ 2 - (a + 2) ^ 2 = - 4(a - 4) (4a ^ 2)/(a ^ 2 - 4) * (a + 2)/(2a)
