Question

4xy - 5xy + 3 xy + 15mn si m = 3 x = 0 y = -1

Answer 1

m = 3 x = 0 y = -1

4xy - 5xy + 3 xy + 15mn

4 . 0 . (-1) - (5 . 0 . (-1)) + 3 . 0 . (-1) + 15 . 3 . n

0 - 0 + 0 +45n

45n