B= (3x +2 )² + 2 (2+3x) (1-2y )+ (2 y -1)² C= (x -y )² + 4xy D= (6x -2 ) + 4 ( 3x -1) ( 2+y ) +(y+ 2)² E= ( 5x+5 )² + 10( x-3 ) (1+x ) + x² – 6x +9 F=

0 bình luận về “B= (3x +2 )² + 2 (2+3x) (1-2y )+ (2 y -1)² C= (x -y )² + 4xy D= (6x -2 ) + 4 ( 3x -1) ( 2+y ) +(y+ 2)² E= ( 5x+5 )² + 10( x-3 ) (1+x ) + x² – 6x +9 F=”

1. B=(3x+2)^2+2(2+3x)(1-2y)+(2y-1)^2

   4y^2+((-12)x-12)y+9x^2+18x+9

   (2y-3x-3)

   C=(x-y)^2+4xy

   y^2+2xy+x^2

   (y+c)^2

   D= (6x -2 ) + 4 ( 3x -1) ( 2+y ) +(y+ 2)²

   y^2+12xy+30x-6

   E= ( 5x+5 )² + 10( x-3 ) (1+x ) + x² – 6x +9

   ( 5x+5 )² + 10( x-3 ) (1+x ) + x² – 6x +9=0

   x=-1/3

   x=-0,3

   F= (x-1)²/4 +x²- 1+ (x+1)²

   x-1)²/4 +x²- 1+ (x+1)²=0

   x=-1/3

   x=-0,3

    

   Bình luận