5x 2 4x 1 7x 2 July 8, 2019 16 32 64 128 5x 3 4x 1 )= 7 2 7x 2 3x 2 5x 1 4x 2 7x 19 4x 5x 2 1 7x 3 8x 2 4x 2 - 2x 1 )-( 5x 2 - 7x 5 3x 2 + 7x 10 )-( 5x 2 - 4x 1 7 5x 2 x 3 3 1 4x 3 7x 2 5x - 7 = 2 - 4x 7-3x =1-5x
