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28 March, 00:20

What does the term "expand" mean in mathematics?

I am NOT searching for "expanded form" or "distribute".

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  1. 28 March, 01:07
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    I think expanding means to remove the parentheses/brackets from a problem.

    For example: Say we have the expression: 3 (4 + 5). I think expanding means to multiply 3, by every number in the parentheses. So that means:

    (3 * 4) + (3 * 5) = 27.

    Another way to think about it is to (if you're on paper) draw a line from 3, to all the numbers inside the parentheses. The line that connects from 3 to 4, is signaling for you to multiply 3 * 4 = 12. And the line from 3 to 5 = 3 * 5 = 15. And add them.
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