#HELP! Complex conjugate cubic business part b

86 messages · Page 1 of 1 (latest)

languid nymph
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I don’t understand after the substitution

IMG_0741.jpg
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Wow that Iwait how did u get that from subbing in four

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Ohhh did u simplify it

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I got 16a+4b+12 oh yes it is the same thing

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😭😭ok

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What about the other root

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Do we just leave it

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Oooohhhhhhh

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Good to know thank uuu I will try it now will update

crimson tartan
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third root is 2i+3

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oh mb

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then

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oh yh thats my fault

languid nymph
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This simultaneous equation is so long

crimson tartan
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sorry we been doing mechanics in my school

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like further mechanics

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we barely started pure but i read a bit on it

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but theres no excuse so mb

languid nymph
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It looks weir

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I think I done it wrong

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a-12ai-4b+2bi=46-46i

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Am I Just supposed to use the a and b

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Aaahhhhhhh

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Lol

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The same thing udid

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I think I misunderstood

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How do I solve those simultaneously if there’s the imgarinary parts

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Ai and the bi

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Oh 💀

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Oh I did 5a -4a

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I don’t know what is happening

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Yes 😢

crimson tartan
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what part u guys on

languid nymph
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Ohhhhhh

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Omg

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That is so

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Omg u can do that

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I actually kind of understand that using just this part ohhhh

crimson tartan
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yh imma go shoot myself then

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cya

languid nymph
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Do u have to pick the real parts of u do the simultaneoius equation with the 4 root

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Ohh oka

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So u can do both

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Yessss

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Oh my it is clicking

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Ok now I will try again

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Wait so did ubget

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a -4b = 46

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I don’t know

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-12a + 2b = 46

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Then

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Wait what was that

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Then do I use lol

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Do I use

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4a + b = -3

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Or do I just use the other one that we made

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Ok but they’re not canceling 😞

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I did 5a - 3b = 43
- 4a + b = -3 is that how u do it

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Or no

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WAIT IM SO

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SLOW

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I FORGOT TO

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make one of the terms equal

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💀💀💀😭😭😭

crimson tartan
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wait if u solved it what u doing

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alternate method?

languid nymph
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AHHHHH ok

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Thank you it makes sense now that was a silly confusion!

crimson tartan
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what did u get

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i just want to check

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u got b=-11

coral warrenBOT
crimson tartan
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yh i got it too

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my -11 looked like -19 lmao

languid nymph
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YAYYYYYYYYYYYYY

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YESSSSSSS

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So many of these cheeky simultaneous

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Thank you!

crimson tartan
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u didnt have to do simultaneous tho

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just use that (z-(a+bi)) thing

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for the complex conjugates

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using x as z

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thats less room for error

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imo

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Really

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It’s simple