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+1
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avatar+1397 

Help Me, please.

 

What is (x+y)4 in expanded form?

 Mar 1, 2018
 #1
avatar+94526 
+1

( x + y)^4

 

We can use the 4th row of Pascal's Triangle for the coefficients.....the first row is "row 0"

 

1   4      6      4     1

 

So  we have

 

1x^4  +   4x^3y   +  6x^2y^2  + 4xy^3  + 1y^4

 

Note, Manuel.....the sum of the exponents in each term  = 4  ......

 

 

cool cool cool

 Mar 1, 2018
 #2
avatar+1397 
+1

Thanks

 Mar 1, 2018

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