2x 3 )( x 7 )= 0 July 8, 2019 16 32 64 128 2x 3 3x 7 0 2x 2 3 )(- x 7 )= 0 2x 1 )( x 3 )( x 7 ) 0 2x 3 5x 2 3x 7 0 2x 3 3x 2 12x 7 0 2x 3x 7 0 4x 3 2x 2 x 7 0 2x 7 3 при x 0 4 X 2 2x 3 /( x 7 )( x 5 0 X2 x 5 )( 2x 3 )( x2 7 )= 0 Cos 2x 7 cos x 3 0 2x 3 )( 3x 7 )= 0 by quadratic formula