问题
填空题
(2x-
|
答案
Tr+1=C4r(2x)4-r(-x-3)r=(-1)r24-rC4rx4-r-3x,
令4-4r=0⇒r=1
则常数项为(-1)(-1)124-rC41=-4×8=-32;
故答案为:-32.
(2x-
|
Tr+1=C4r(2x)4-r(-x-3)r=(-1)r24-rC4rx4-r-3x,
令4-4r=0⇒r=1
则常数项为(-1)(-1)124-rC41=-4×8=-32;
故答案为:-32.