(0.5-x)(x+0.5)(x^2+0.
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(0.5-x)(x+0.5)(x^2+0.
还有100.5*99.5、99*101*10001一共三道题,
还有100.5*99.5、99*101*10001一共三道题,
(0.5-x)(x+0.5)(x^2+0.25)
=(0.5-x)(0.5+x)(0.25+x²)
=(0.25-x²)(0.25+x²)
=0.0625-x^4;
100.5*99.5、
=(100+0.5)×(100-0.5)
=100²-0.5²
=10000-0.25
=9999.75;
99*101*10001
=(100-1)×(100+1)×(10000+1)
=(10000-1)(10000+1)
=100000000-1
=99999999;
很高兴为您解答,skyhunter002为您答疑解惑
如果本题有什么不明白可以追问,
=(0.5-x)(0.5+x)(0.25+x²)
=(0.25-x²)(0.25+x²)
=0.0625-x^4;
100.5*99.5、
=(100+0.5)×(100-0.5)
=100²-0.5²
=10000-0.25
=9999.75;
99*101*10001
=(100-1)×(100+1)×(10000+1)
=(10000-1)(10000+1)
=100000000-1
=99999999;
很高兴为您解答,skyhunter002为您答疑解惑
如果本题有什么不明白可以追问,
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