<![CDATA[Math Is Fun Forum / common mistake]]> 2021-05-15T16:50:47Z FluxBB https://www.mathisfunforum.com/viewtopic.php?id=19547 <![CDATA[Re: common mistake]]> Hostible wrote:

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.

True but (-a)^2 is totally different.

We know that (-a)^2 = (-a)(-a) = a^2.

Let me see.

-[(a)(a)]

-(a^2)

-a^2

Agree?

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https://www.mathisfunforum.com/profile.php?id=223890 2021-05-15T16:50:47Z https://www.mathisfunforum.com/viewtopic.php?pid=419337#p419337
<![CDATA[Re: common mistake]]> 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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https://www.mathisfunforum.com/profile.php?id=208875 2014-10-31T10:49:24Z https://www.mathisfunforum.com/viewtopic.php?pid=340799#p340799
<![CDATA[common mistake]]> 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.

]]>
https://www.mathisfunforum.com/profile.php?id=201704 2013-06-01T06:29:28Z https://www.mathisfunforum.com/viewtopic.php?pid=271303#p271303