Răspuns: a × b = 34
Explicație pas cu pas:
[ 3 + ( a × b + 31 × 8 - 603 : 3 ) : 9 ] × 2 + 1993 = 2017
[ 3 + ( a × b + 248 - 201 ) : 9 ] × 2 = 2017 - 1993
[ 3 + ( a × b + 248 - 201 ) : 9 ] × 2 = 24
3 + ( a × b + 248 - 201 ) : 9 = 24 : 2
3 + ( a × b + 248 - 201 ) : 9 = 12
( a × b + 248 - 201 ) : 9 = 12 - 3
( a × b + 248 - 201 ) : 9 = 9
a × b + 248 - 201 = 9 × 9
a × b + 248 - 201 = 81
a × b = 81 + 201 - 248
a × b = 282 - 284
a × b = 34
34 = 2 × 17 = 17 × 2 = 34 × 1 = 1 × 34
( a, b ) = ( 2, 17 ); ( 17, 2 ); ( 34, 1); ( 1, 34)