解:?$(1)$?二次項(xiàng)系數(shù)為?$\sqrt 2;$?一次項(xiàng)系數(shù)為?$0;$?常數(shù)項(xiàng)為?$-10$?
?$(2)y=-x^2-2x+1,$?二次項(xiàng)系數(shù)為?$-1;$?一次項(xiàng)系數(shù)為?$-2;$?常數(shù)項(xiàng)為?$1$?
?$(3)y=x^2-6x+3,$?二次項(xiàng)系數(shù)為?$1;$?一次項(xiàng)系數(shù)為?$-6;$?常數(shù)項(xiàng)為?$3$?