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solve equation

0.4^x=7^x^2

what are solutions
malvelous  Feb 13, 2012
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malvelous:

solve equation

0.4^x=7^x^2

what are solutions


[input]plot(0.4^x, (7^x)^2, x=-0.2..0.2)[/input]

real solutions:
x=0

complex solutions:
???
admin  Feb 13, 2012

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