(1+x)10=a0+a1(1-x)+a2(1-x)2+……+a10(1-x)10
[2-(1-x)]^10=a0+a1(1-x)+a2(1-x)2+……+a10(1-x)10
T9=T(8+1)=C(10,8)*2^2*[-(1-x)]^8
a8=C(10,8)*4=90
(1+x)10=a0+a1(1-x)+a2(1-x)2+……+a10(1-x)10
[2-(1-x)]^10=a0+a1(1-x)+a2(1-x)2+……+a10(1-x)10
T9=T(8+1)=C(10,8)*2^2*[-(1-x)]^8
a8=C(10,8)*4=90