7 2x 4 5 7x July 8, 2019 16 32 64 128 5 2x 7 )+ 4 7x 2 )= 65 2 7 2x 7 5 4 7x 3 6 2x 4 )+ 7 3 7x 5 )+ 35 2x x 4 )+ 5 =- x2 7x 7 2x 7 7 2x-5 4 7 2x-5 4x
