= 1542 X ( 1 + 8 + 1 )
= 1542 x 10
= 15420
kb vs mk nha
1542 x 1 + 1542 x 8 + 1542
= 1542 x 1 + 1542 x 8 + 1542 x 1
= 1542 x ( 1 + 8 + 1 )
= 1542 x 10
= 15420
1542 *1 +1542 * 8 +1542= 1542 + 12336 + 1542 = 15420
K mk rồi mk kết nha, mk làm nhanh nhất
1542*1+1542*8+1542
=15420
nha bn,k cho mk nha
1542*1+1542*8+1542
=1542*1+1542*8+1542*1
=1542*(1+8+1)
=1542*10
=15420
Ta có :
1542 x 1 + 1542 x 8 + 1542
= 1542 x 1 + 1542 x 8 + 1542 x 1
= 1542 x ( 1 + 8 + 1 )
= 1542 x 10
= 15420