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Algebra

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Moderate

Rule for Product of Numbers with Different Signs

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A student does the following examples:

$-4\cdot9=-36$
$-9\cdot4=-36$
$-10\cdot2=-20$
$10\cdot-2=-20$

What rule is the student most likely trying to find out?

A

How to find the sign for the sum of numbers with different signs

B

How to find the sign for the product of numbers with the same sign

C

How to find the sign for the product of numbers with different signs

D

How to find the sign for the sum of numbers with the same signs