问题
填空题
若“ω”是新规定的某种运算符号,设aωb=3a-2b,则(x+y)ω(x-y)=______.
答案
由题意得,(x+y)ω(x-y)=3(x+y)-2(x-y)=3x+3y-2x+2y=x+5y.
故答案为:x+5y.
若“ω”是新规定的某种运算符号,设aωb=3a-2b,则(x+y)ω(x-y)=______.
由题意得,(x+y)ω(x-y)=3(x+y)-2(x-y)=3x+3y-2x+2y=x+5y.
故答案为:x+5y.