#A2 functions 14b)

56 messages · Page 1 of 1 (latest)

rugged abyss Oct 30, 2022, 5:43 PM

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abstract kernel Oct 30, 2022, 5:46 PM

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yo so

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do you know what the f^2(x) means in this case

rugged abyss Oct 30, 2022, 5:47 PM

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ff(x)

abstract kernel Oct 30, 2022, 5:47 PM

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ok awesome so

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without simplyfing yet , whats that gonna be

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expanded out

rugged abyss Oct 30, 2022, 5:48 PM

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put f into the x's

abstract kernel Oct 30, 2022, 5:49 PM

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whats that gonna be tho

rugged abyss Oct 30, 2022, 5:49 PM

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rn_image_picker_lib_temp_2e838398-4171-4b90-a40b-b8923bdc0c89.jpg

abstract kernel Oct 30, 2022, 5:49 PM

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ok awesome so

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yuck

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now one tactic which you might remmeber from surds is

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multiplying top and bottom by the same number to try simplify

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yeah?

rugged abyss Oct 30, 2022, 5:50 PM

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yep

abstract kernel Oct 30, 2022, 5:50 PM

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ok so

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what might we wanna multiply top and bottom with

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to try get rid of all the /x's on top and bttom

rugged abyss Oct 30, 2022, 5:51 PM

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ngl, im not sure

rugged abyss Oct 30, 2022, 5:51 PM

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anything that looks like this idk what to do

abstract kernel Oct 30, 2022, 5:52 PM

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well so

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top and bottom have fractions within them

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and both are ?/x

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yeah?

rugged abyss Oct 30, 2022, 5:53 PM

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yes

abstract kernel Oct 30, 2022, 5:53 PM

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so multiplying that by x

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will cancel that fraction bit

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yeah?

rugged abyss Oct 30, 2022, 5:53 PM

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ohhh yes

abstract kernel Oct 30, 2022, 5:53 PM

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so maybe try that

rugged abyss Oct 30, 2022, 5:55 PM

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rn_image_picker_lib_temp_b741646f-ee2e-41f4-a72e-4a83376e51ff.jpg

abstract kernel Oct 30, 2022, 5:55 PM

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ah so

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multipplying by the x

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the +2 on the top which isnt part of the fraction

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you need to multiply that by x as well

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gotta multiply everything by x

rugged abyss Oct 30, 2022, 5:55 PM

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yep i did x+2x+2

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just inky pen 😭

abstract kernel Oct 30, 2022, 5:56 PM

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oh

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well then its simplying

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whats x + 2x

rugged abyss Oct 30, 2022, 5:56 PM

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3x

abstract kernel Oct 30, 2022, 5:56 PM

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so your fractions

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(3x+2)/(x+2)

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yeah?

rugged abyss Oct 30, 2022, 5:56 PM

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yes

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that's the answer

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tysm

abstract kernel Oct 30, 2022, 5:56 PM

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which is what you want

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nw!

rugged abyss Oct 30, 2022, 5:57 PM

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never thought of x'ing by x

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didn't think that was allowed 😭

abstract kernel Oct 30, 2022, 5:57 PM

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yeah its a bit weird but

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still allowed 😄

rugged abyss Oct 30, 2022, 5:58 PM

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ty!!