几道数学小题
6xy²-9x²y-y³=___________
32a(x²+x)²-2a=___________
T的四次方-2t+1=___________
(a-b)³+2(b-a)的四次方+(a-b)的五次方=___________
A²-1+b²-2ab=(a²-2ab+b²)-1=()²-1²=(a-b+1)()
X²-4y²+2x-4y=x²+2x+1-4y²-1=()²-()²=(x+2y+2)()