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It seems like we cannot multiply a number by itself to get a negative answer ...
... but imagine that there is such a number (call it i for imaginary) that could do this:
Would it be useful, and what could we do with it?
Well, by taking the square root of both sides we get this:
Which is actually very useful because ...
... by simply accepting that i exists we can solve things that need the square root of a negative number.
Comments
...&, i'm sorry for everything i've done wrong... all along lifetimes i got...
It seems like we cannot multiply a number by itself to get a negative answer ...
... but imagine that there is such a number (call it i for imaginary) that could do this:
Would it be useful, and what could we do with it?
Well, by taking the square root of both sides we get this:
Which is actually very useful because ...
... by simply accepting that i exists we can solve things
that need the square root of a negative number.