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Mathematics 18 Online
OpenStudy (anonymous):

Help with math problem?

OpenStudy (zehanz):

The delta sign is a new kind of operation. Your second line describes what it does. So all you have to do is : \(4~ \Delta~5=4\cdot5+5=...\)

OpenStudy (zehanz):

In words: if you have to "delta" two numbers, just multiply them and then add the second one to that result.

OpenStudy (zehanz):

@Powerful22: does this help?

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