5 4 x )- 7 (- x 2 )= 4 9 3 July 8, 2019 16 32 64 128 X 5 )( x 4 )-( x 7 )( x 9 )+( x 1 )( x 2 )-( x 3 )( x 4 4 3 x 7 2 5 7 9 x 4 13 7 4 x 29 5 7 5 x 9 4 3 2 13 5 x 7 = 35 5 x 5 x 5 x 5 x 5 5 x 5 x 5
