问题
填空题
若
|
答案
设
=a 2
=b 3
=k，c 4
则a=2k，b=3k，c=4k，
∴3a-2b+5c -6a-b-3c
=3×2k-2×3k+5×4k -6×2k-3k-3×4k
=-
．20 27
故答案为：-
．20 27
搜题请搜索小程序“爱下问搜题”
若
|
设
=a 2
=b 3
=k，c 4
则a=2k，b=3k，c=4k，
∴3a-2b+5c -6a-b-3c
=3×2k-2×3k+5×4k -6×2k-3k-3×4k
=-
．20 27
故答案为：-
．20 27