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Beginning Pre-Calculus for Game Developers by Boris Meltreger, John P. Flynt

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Multiplication and Division

When you combine positive and negative numbers through division, results vary according to the signs of the numbers. There are two general ways to view the results of multiplication and division operations involving numbers with different signs. First, consider multiplication and division problems involving only two numbers. Then consider multiplication and division problems involving more than two numbers.

Multiplication and Division with Two Numbers

When you carry out multiplication and division operations that involve two numbers, you deal with a few basic possibilities:

  • Both numbers are positive. If both numbers are positive, then the result of the multiplication or division is positive. Here are a few examples: ...

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