306 x 41 + 58 x 306 + 306
= 306 x 41 + 58 x 306 + 306 x 1
= 306 x ( 41 + 58 + 1 )
= 306 x ( 99 + 1 )
= 306 x 100
= 30 600
306 x 41 + 58 x 306 + 306
= 306 x 41 + 58 x 306 + 306 x 1
= 306 x (41 + 58 + 1)
= 306 x 100
= 30600
306*41+58*306+306
=306*(41+58+1)=306*100=30600
tích đúng nha !