question_answer

If \[\mathbf{a}=\mathbf{5},\text{ }\mathbf{b}=\mathbf{3}\]and\[\mathbf{c}=\mathbf{2}\], then which of the following is not true?

A) \[\left( a+b \right)+c=a+\left( b+c \right)\]           

B) \[\left( a\times b \right)\times c=a\times \left( b\times c \right)\]

C) \[a\times \left( b+c \right)=a\times b+a\times c\]          

D) \[a+\left( b\times c \right)=a\times b+b\times c\]

E) None of these