567*678+433*322+678*433+322*567=?

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567*678+433*322+678*433+322*567=?
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567*678+433*322+678*433+322*567=?
567*678+433*322+678*433+322*567=?

567*678+433*322+678*433+322*567=?
567*678+433*322+678*433+322*567
=567*(678+322)+433*(678+322)
=(678+322)*(567+433)
=1000*1000
=1000000

原式=678(567+433)+322*(433+567)
=(678+322)1000
=1000000

1000000