7 2 4x 5 July 8, 2019 16 32 64 128 7 4x 2 5x 7 12x 2 4x 5 8x 7 x 2 )= 4x 5 7 2 x 5 )= 4x 3 7 4x 2 )- 8 5 3x 6x 7 3x 2 4x 5 2x 3 5x 7 2 4x 3 5x 2 7 5x )=- 4x 10 2 3x 7 )+ 4x 5 41 4x 2 5x 7 0 4x 2 5x 12 7 4x 7 2 x 4 5 7 3x 5 − 2 4x 3 Proste y 7 iy 2 4x 5 7 4x 2 5x 8