平方完成 演習6
x2 -6x +5 +y2 -4y +3 =0
(1/16) ( 9t2 -6t +9 )
12t2 -24t +30
2a2 -3ab +2b2
x2 -4xy +5y2 -6y +9
2a2 +2a +3
9/2 a2 -6a +9/2
x2 +y2 -2x -4y -4 =0
x2 +y2 +7x +10 =0
x2 -2ax -4b +4
2t2 -2t +5
x2 -6x +5 +y2 -4y +3 =0
(1/16) ( 9t2 -6t +9 )
12t2 -24t +30
2a2 -3ab +2b2
x2 -4xy +5y2 -6y +9
2a2 +2a +3
9/2 a2 -6a +9/2
x2 +y2 -2x -4y -4 =0
x2 +y2 +7x +10 =0
x2 -2ax -4b +4
2t2 -2t +5