A-Level Maths: D1-13 [Binomial Expansion: Fully Expand (3x^2y - 4xy)^4

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this could not have been explained easier for me, thank you!

kalechipsalad
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when there is a negative power on the outside of the bracket how do you use paschals triangle?

frankdandrea
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In previous video we start from lowest power to the highest in 3rd box but now why you're starting it with highest power?

shutup
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on the right column the indices go from 4 to 0 going down. in all of the other videos they start at 0 at the top of the right column and increase going down. does it ever matter which way round it goes?

James-qnrg
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does it matter what order the final answer is in

PogbaMUFC
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why did you multiply -4xy with the power of 4 rather than 3x^2y?

harrylin