X 3 4x 7 0 July 8, 2019 16 32 64 128 X 3 2x 2 4x 7 0 X 3 2 4x 7 0 X 2 3 4x 7 64 0 X 7 )( x 5 2 4x 3 )= 0 The sum of roots of x 3 2 4x 7 0 is
