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# Exponential function watch

1. Why is there not an answer to this? (-64)^3=4(16)^(2/3)x

I did 3 = -3/2x
3x-2/3 = x
x = -2
2. (Original post by Airess3)
Why is there not an answer to this? (-64)^3=4(16)^(2/3)x

I did 3 = -3/2x
3x-2/3 = x
x = -2
First off, you'd be better off posting straight into the Maths forum.

It looks like you've tried to equate to which is just not true.
I am, however, puzzled as to where you pulled the from.
Could you be a little clearer about what you've done?

Finally, it is not true that this has no solution, only that there is no real solution. A complex solution does exist.

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