Sagot :
A= ( 15 + 3 + 2 ) * 5 + 3 ( 1 + 6 )
= 20 * 5 + 3 * 7
= 20 * 8 * 7
= 1120
B= 8 ( 1 + 3 * 2 ) + 4 ( 7 * 2 + 1 )
= 8 ( 1 + 6 ) + 4 ( 14 + 1 )
= 8 * 7 + 4 * 14 + 1
= 56 + 56 + 1
= 113
= 20 * 5 + 3 * 7
= 20 * 8 * 7
= 1120
B= 8 ( 1 + 3 * 2 ) + 4 ( 7 * 2 + 1 )
= 8 ( 1 + 6 ) + 4 ( 14 + 1 )
= 8 * 7 + 4 * 14 + 1
= 56 + 56 + 1
= 113