1 5x 3 2 7x 4 July 8, 2019 16 32 64 128 2 5x 3 )- 4 7x 1 )=- 88 3x x 1 )- 2x 5x 3 7x 2 x )+ 4 5x 3 4x 1 )= 7 2 7x 2 1 5x 3 4x 2 7x 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 4 5x 1 5x 3 7x 2 7x 0 28 2 7x )/( 1 5x 3 7x )/( 4 5x 2 5x 3 7 1 4 7x 5x 7x 47x =- 2 1 3
