736的二次方-264的二次方+99.9的二次方
=(736+264)*(736-264) +(100-0.1)²
=1000*472 + 100²-2*100*0.1 + 0.1²
=472000+10000 - 20 + 0.01
=482000- 20+0.01
=481980.01
736的二次方-264的二次方+99.9的二次方
=(736+264)*(736-264) +(100-0.1)²
=1000*472 + 100²-2*100*0.1 + 0.1²
=472000+10000 - 20 + 0.01
=482000- 20+0.01
=481980.01