If a 2 3 4 5 show that a2 7a 2i 0 July 8, 2019 16 32 64 128 If a 2 3 4 5 show that a 2 )- 7a 2i 0 If 2a – 2−a = what is the value of 4a + 4−a If a = 2 3 4 5 show that a ^ 2 - 7a - 21 = 0 If a = 2 3 4 5
