#Bionomia expansion
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x^3 coefficient can be got when the x^2 term of the expansion of the second bracket is multiplied by the x of the other bracket or when the x^3 term of the second bracket expanded is multiplied with the 2 from the other bracket
So find both of those then add them
Then you have the coefficient of that = 30
Yeah you just saying ?? Isn’t helpful
If you don’t get it just fully expand everything
Oh ok
whats the answer