Solution
expand
Solution
Solution steps
Apply binomial theorem:
Expand summation
Simplify
Simplify
Simplify
Simplify
Simplify
Rewrite in standard complex form:
Popular Examples
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Frequently Asked Questions (FAQ)
What is expand (x+iy)^4 ?
The solution to expand (x+iy)^4 is (x^4-6x^2y^2+y^4)+(4x^3y-4xy^3)i