8 2x 5 )=- 2 4x 7 July 8, 2019 16 32 64 128 What is the solution to 8 2x 5 2 4x 7 ) 9 2 5 4x 7 2x 5 8 7x 5 2x 8 4x 2 2x 3 4x 5 )=- 2 8 x 7 2x ^ 8 + 5x ^ 4 - 7 = 0