Answer:
[tex](x+y)^4 =x^4+4x^3y +6x^2y^2+4xy^3+y^4[/tex]
Step-by-step explanation:
Given is an algebraic expression raised to power 4
[tex](x+y)^4\\[/tex]
Let us write 4 rows of Pascal triangle
1
1 2 1
1 3 3 1
1 4 6 4 1
Thus we find coefficients as 1,4,6,4,1 and x will be having reduced powers while y will have increasing powers.
Hence expansion would be
[tex](x+y)^4 =x^4+4x^3y +6x^2y^2+4xy^3+y^4[/tex]
