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**Hostible****Member**- Registered: 2013-05-31
- Posts: 5

Know that -a^2 means -1 x a^2 and not -a x -a.

The reason is that -a^2 has its coefficient as -1

Therefore -a x -a = a^2 and and not -a^2.

This symbol ^ implies exponent.

*Last edited by Hostible (2013-05-31 18:30:49)*

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**DeanPemberton****Member**- From: USA
- Registered: 2014-10-30
- Posts: 21
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Thank for explaining this exponential function here, I completely understand the equation. Here coefficient is different thing and variable is different.

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