X 2 7x 12 3x 4 July 8, 2019 16 32 64 128 X 7 3x 12 2 x 7x 40 3x2 12x Limx → 4 x 2 7x 12 x 2 3x 4 9 7x 12 3x 5 4 2 x Limit x tends to 4 x 2 7x 12 x 2 3x 4 X 10 )-( 3x 12 )= 7x 2 11 4x