Hey everyone:

I'm running this code:
find_root(e^(-2*x*1)-(1 - 4*x),-2,2)

It returns 

2.4011774461136836e-13

which is approximately 0. However, there should be another root around x = 
-0.628. Why isn't it finding this root? 
Is there any way I can make sure it finds all of them?



Thanks

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