(4a²b-b²)-(-3a²b²+10b²)怎么做?
1个回答
(4a²b-b²)-(-3a²b²+10b²)
=4a²b-b²-3a²b²-10b²
=a²b-11b²
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观察下列各式:a+b=1,a2+b2=3,a3+b3=4,a4+b4=7,a5+b5=11,…,则a10+b10=___
观察下列各式:a+b=1,a2+b2=3,a3+b3=4,a4+b4=7,a5+b5=11,…,则a10+b10=___