GOODMAN
Expand: (2s3t)^5



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saifoo.khan
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binomial?

GOODMAN
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Yea.

saifoo.khan
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dont u know the formula ?

GOODMAN
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Wasnt given one.

saifoo.khan
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FAIL.


GOODMAN
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How am I a fail? I wasnt given one or taught one..

saifoo.khan
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Then how they taught you Binomial expansion?

Eyad
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32 s^5240 s^4 t+720 s^3 t^21080 s^2 t^3+810 s t^4243 t^5

GOODMAN
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No, teacher gave me a page of them to do.

GOODMAN
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Thank you, Eyad.

Eyad
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yw :)

saifoo.khan
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Direct answers! D:

Eyad
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Under your explanation and your rule :P

GOODMAN
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You werent helping much, lol. Just telling me that I was a fail. @saifoo.khan
Yea, teamwork :)@Eyad

.Sam.
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(2s3t)^5
Just expand
\[^5C_0(3t)^0(2s)^5=\]
\[^5C_1(3t)^1(2s)^4=\]
\[^5C_2(3t)^2(2s)^3=\]
\[^5C_3(3t)^3(2s)^2=\]
\[^5C_4(3t)^4(2s)^1=\]
\[^5C_5(3t)^5(2s)^0=\]

GOODMAN
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And that will be my written answer? Or will I have to expand it further?

.Sam.
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(p+q)^5
no, you have to use the formula \[^nC_r(q)^r(p)^{nr}\]