'2 mab' presentation slideshows

=x 2 +5 x +6 =x 2 -3 x -4 =x 2 -11 x + 30

?????? ? ( x +2)( x +3) ?( x -4)( x +1) ? ( x -5)( x -6) ( x + p )( x + q ). =x 2 +5 x +6 =x 2 -3 x -4 =x 2 -11 x + 30. =x 2 +( p + q ) x + pq. ??????????? ? ( y +4 )( y -2 ) ?( y -5 )( y -3 ) ?( a -2 )( a +5 ) ?( a +9 )( a -9 ). ?? : (1)(P+1) 2 ? (P+1)(P+1 )= . (2)(m+2) 2 = .

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Chapter 10 : Circles

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