3ab²-[2a²b+(5ab²-3a²b)-a²]+b²,其中a=-1,b=0.1

3ab²-[2a²b+(5ab²-3a²b)-a²]+b²,其中a=-1,b=0.1
3ab²-[2a²b+(5ab²-3a²b)-a²]+b²,其中a=-1,b=0.1

3ab²-[2a²b+(5ab²-3a²b)-a²]+b²,其中a=-1,b=0.1
3ab²-[2a²b+(5ab²-3a²b)-a²]+b²
=3ab²-2a²b-(5ab²-3a²b)+a²+b²
=3ab²-2a²b-5ab²+3a²b+a²+b²
=-2ab²+a²b+a²+b²
=0.02+0.1+1+0.1
=1.22

3ab²-[2a²b+(5ab²-3a²b)-a²]+b²
=3ab²-[2a²b+5ab²-3a²b-a²]+b²
=3ab²-2a²b-5ab²+3a²b+a²+b²
=-2ab²+a²b+a²+b²
=-2×(-1)×0.01+1×0.1+1+0.1
=0.02+0.1+1+0.1
=1.22

3ab²-[2a²b+(5ab²-3a²b)-a²]+b²
=3ab²-2a²b-(5ab²-3a²b)+a²+b²
=3ab²-2a²b-5ab²+3a²b+a²+b²
=6ab²-2a²b-5ab²+a²+b²
a=-1,b=0.1
=-0.06-0.2+0.05+1+0.01
=0.8

=3ab²-[2a²b+5ab²-3a²b-a²]+b²
=3ab²+2a²b-5ab²+3a²b+a²+b²
=-2ab²+5a²b+a²+b²
解；当a=-1,b=0.1时
0.02+0.5+1+0.01
=1.53