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4 votes
-7 -8 How do I Multiply these directed numbers?

User AtliB
by
8.3k points

1 Answer

4 votes

Solution:

Given:


-7*-8

Directed numbers are numbers with signs.

When multiplying, the following rules apply;


\begin{gathered} -*-=+ \\ +*+=+ \\ -*+=- \\ +*-=- \end{gathered}

Hence,


\begin{gathered} -7*-8=(-*-)(7*8) \\ =+56 \end{gathered}

Therefore, the answer is +56

User Rudd Zwolinski
by
8.6k points

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