(sqrtroot(4+h)-2)/h

limit h getting closer to 0

https://gyazo.com/241d033e24c57ea2a839c7f610bdc820 easier to see.

I did multiply (sqrtroot(4+h)-2) by its opposite which is +2 instead.

(sqrtroot(4+h)-2 * (sqrtroot(4+h)+2 = 4+x -4 which is just x.

so, we multiple the denominator x after?

x/(x*(sqrtroot(4+h)-2). or do we factor out x's? and left with 1/(sqrtroot(4+h)-2)? becuse that gives 1/2 as answer but mathway says 1/4.

I dont understand what l'Hospital's Rule is. or that d/dh. our teacher taugh us this way but mathway shows that method.