(29+2/3)*(30+1/3)分解因式

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(29+2/3)*(30+1/3)分解因式

=(30-1+2/3)*(30+1/3)
=(30-1/3)*(30+1/3)
=30*30-1/3*1/3
=900-1/9
=8099/9

(29+2/3)*(30+1/3)
=(30-1/3)*(30+1/3)
=30²-(1/3)²