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Jonask Group TitleBest ResponseYou've already chosen the best response.0
f(x+h) means where you see the x you add h DO NOT FOCUS ON OTHER NUMBERS
 one year ago

Zelda Group TitleBest ResponseYou've already chosen the best response.0
10x Should be the final answer.
 one year ago

Jonask Group TitleBest ResponseYou've already chosen the best response.0
@Zelda theres no limit here
 one year ago

april1renee Group TitleBest ResponseYou've already chosen the best response.0
5(x+h)^2 f(5x^2) ??
 one year ago

Jonask Group TitleBest ResponseYou've already chosen the best response.0
yes then divide by h
 one year ago

april1renee Group TitleBest ResponseYou've already chosen the best response.0
5(x^2+2xh+h^2)= 5x^2+10xh+5h^2
 one year ago

april1renee Group TitleBest ResponseYou've already chosen the best response.0
5x^2+10x+5h
 one year ago

Zelda Group TitleBest ResponseYou've already chosen the best response.0
Hey april, is there the word lim as h> 0 before f(x)?
 one year ago

Jonask Group TitleBest ResponseYou've already chosen the best response.0
5x^2+10xh+5h^2(5x^2+10x+5h)=
 one year ago

april1renee Group TitleBest ResponseYou've already chosen the best response.0
the answer i have is 10x+5h
 one year ago

Jonask Group TitleBest ResponseYou've already chosen the best response.0
yes but is there any thing like this \[\lim_{h \rightarrow 0}\] on the question
 one year ago

april1renee Group TitleBest ResponseYou've already chosen the best response.0
professor answer is 5(2x+h) i dont undestand why i would divide by 5
 one year ago

ZeHanz Group TitleBest ResponseYou've already chosen the best response.1
It would be (very much) more clear if everyone wouldn't just write peaces of the problem, but the whole thing:\[\frac{ f(x+h)f(x) }{ h }=\frac{ 5(x+h)^25x^2 }{ h }=\frac{ 5(x^2+2xh+h^2)5x^2 }{ h }\]See? Just keep on writing the complete fraction, simpifying it along the way, until you're done:\[\frac{ 5x^2+10xh+5h^25x^2 }{ h }=\frac{ 10xh+5h^2 }{ h }=\frac{ 5h(2x+h) }{ h }=5(2x+h)\]So finally we've lost the fraction! Sooner or later the question of what will happen if h goes to 0 will be asked. Here you see immediately that leads to 10x.
 one year ago

ZeHanz Group TitleBest ResponseYou've already chosen the best response.1
Of course, you could write the answer also as 10x + 5h
 one year ago

april1renee Group TitleBest ResponseYou've already chosen the best response.0
THANK YOU!
 one year ago

ZeHanz Group TitleBest ResponseYou've already chosen the best response.1
You're welcome!
 one year ago
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