Question

а)х (х – 6 ) = 0 ;

б) a( 4 + a) = 0 ;

в)( y – 9)(y + 3) = 0 ;

г) m(m + 7)(m – 8) = 0 ;

д)b2(b + 4)( b + 1) = 0 ;

е) ( 5x - 4)( 4x + 8) = 0 ;

ж) (6y – 12 )( 3y + 9) = 0 ;