Implied multiplication happens when we have variables and numbers written without any sign between them; also it happens when we write parentheses, in this case this will mean that:
[tex]\begin{gathered} 3(bc)=2d \\ 3(b\times c)=2\times d \\ 3\times b\times c=2\times d \end{gathered}[/tex]
Therefore, the equation written with the multiplication denoted explicitly is:
[tex]3\times b\times c=2\times d[/tex]
