Mathematics
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OpenStudy (anonymous):
Expand the following using the Binomial Theorem and Pascal’s triangle.
(x + 2)^6
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OpenStudy (isaiah.feynman):
Can you draw the pascal's triangle?
OpenStudy (anonymous):
I have it, but I don't understand it
OpenStudy (anonymous):
OpenStudy (anonymous):
if the exponent is 6, does that mean I look on row 6?
OpenStudy (anonymous):
Yes Im pretty sure.
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OpenStudy (anonymous):
Ok, I don't know what to do from there.
OpenStudy (anonymous):
Ok let me do the math 1 sec
OpenStudy (anonymous):
Hmm Im doing something wrong here i missed a step
OpenStudy (anonymous):
there's an example on my lesson:
OpenStudy (anonymous):
you have to expand it through row 2 and row 4
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OpenStudy (anonymous):
what do u mean?
OpenStudy (anonymous):
OpenStudy (anonymous):
let me see how to explain it.
OpenStudy (anonymous):
I get the part about the coefficients, but not the exponents. How do you know what numbers to put for the exponents
OpenStudy (anonymous):
ok
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OpenStudy (anonymous):
like if the give me 5 with the little exponent its like saying 5*5*5*5*5 *= times
OpenStudy (anonymous):
that's not what I asked.. never mind
OpenStudy (anonymous):
I found this:
OpenStudy (anonymous):
(a + b)^2 = (a + b)(a + b)
= a^2 + ab + ba + b^2
= a^2 + 2ab + b^2
OpenStudy (anonymous):
so that's how we form it
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OpenStudy (anonymous):
but there are 7 numbers in the last row.. not 3... so idk
OpenStudy (anonymous):
Multiply
OpenStudy (anonymous):
multiply what?..
OpenStudy (anonymous):
@Isaiah.Feynman can you please help