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4 + 0 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.

L.C.M. of \(a^2 + b^2\) and \(a^4 - b^4\) is:

\(a^2 - b^2\)

\(a - b\)

\(a^4b^4\)

\(a^4 - b^4\)