- Thread starter Käthe
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My first thought would be that the numerator has to go to zero, since the denominator does; that will give you one equation in a, b, and c.View attachment 22207

I have to find the value of a, b and c. To be honest, I have no idea, where to start. I would be thankful for any help.

Then you might try L'Hopital's rule, if you know that.

If you can show your work as far as you can get with these thoughts, and also tell us what you have learned that might be applicable, we can consider the next step. (I haven't looked that far yet.)

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Finally, as x goes to 0, the denominator goes to -4, not 0 and the numerator goes to -b+ 16a+ c so we must have \(\displaystyle -\frac{-b+ 16a+ c}{4}= 10\).

We have three equations to solve for a, b, and c.