I know how to do the question, I am just having trouble with the algebra someone please help
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I can't quite read the numerator of your function. They mean for you to plug in to the definition of derivative: $\displaystyle f'(x)=\lim_{h\to{0}}\frac{f(x+h)-f(x)}{h}$. So what happens when you plug in your function? - Hollywood
It's ok I got it, someone helped me out
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