3 x 1 4x 5 x 7 July 8, 2019 16 32 64 128 Y x 5 x 3 4x 1 2 7 differentiation 2x 5 7x 3 x 2 4x 1 x 2 4x 3 x 1 5 5x 7 3 x 2 )+ 4x 5 7 x 1 )- 6 Y x 5 x 3 4x 1 2 7 3 x-5=x+3 5 x 7 = 35
