7x 2 4 1 5x 3 July 8, 2019 16 32 64 128 7x 2 4 )-( 3x 2 5x 1 7x 2 5x 3 )- 4 2 3x )= 1 2 5x 3 )- 4 7x 1 )=- 88 2 7x 1 5x 3 7x 4 5x class 8 2 7x 1 5x 3 7x 4 5x answer 2 7x 1 5x 3 7x 4 5x verify 2 4 5x 1 3 7x 3 1 8 28 2 7x )/( 1 5x 3 7x )/( 4 5x 3 2 4 8x )+ 5x 1 7x 4 5x 1 5x 3 7x 2 7x 0
