5 2x 1 7 3 x July 8, 2019 16 32 64 128 2 x 5 )- 5 2x 1 )= 7 3 x 5 2x 1 )- 3 3x 2 )= 7 x 4 Lim x 7 2x 5 1 )/( x 3 3x 2 2 3 x 5 )- 7 2x 1 )=- 9x 20 5 2x 1 )+ 7 x 1 )= 3x 12 2x 1 5 x 2 3 x 7 15 9x 4 x 5 )- 1 7 x 3 )- 2x 5 2x 3 1 7 3 x 8 6x 5 2x 1 )+ 7 2 3x )=- 3 x 3 5 2x 1 ≥ 3x 7 x 2x 1 7 4 5 x 3 5 2x 3 )+ 7 12 5 x 1