问题
填空题
4x-3x2+2=______.
答案
∵4x-3x2+2=0时,x=
,2± 10 3
∴4x-3x2+2=-3x2+4x+2=-3(x-
)(x-2+ 10 3
).2- 10 3
故答案为:-3(x-
)(x-2+ 10 3
).2- 10 3
4x-3x2+2=______.
∵4x-3x2+2=0时,x=
,2± 10 3
∴4x-3x2+2=-3x2+4x+2=-3(x-
)(x-2+ 10 3
).2- 10 3
故答案为:-3(x-
)(x-2+ 10 3
).2- 10 3