Question

现定义两种运算“+”,“x”,对于任意两个整数,a,b,a+b=a+b-1,axb=axb-1,求4x[(6+8)+(2

Answer 1

4x[(6+8)+(2*7)]

=4*[(6+8-1)+(2*7-1)]

=4*[13+13]

=4*[13+13-1]

=4*25

=4*25-1

=99