wot happens when you multiply with a negative number?eg 4x-7=?

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- Nov 19th 2006, 03:24 AMsteveradfordmultiplication of negatives
wot happens when you multiply with a negative number?eg 4x-7=?

- Nov 19th 2006, 03:34 AMCaptainBlack
We have a convention that:

1) the product of a negative and a negative is positive

and

2) the product of a positive and negative is negative.

These conventions allow arithmetic to be extended consistently to

cover multiplication and division of negative numbers.

In this case:

$\displaystyle

4 \times -7 = - 28

$

RonL