Answer:
a4+a2b2+b2a2+b4 -(a4-a2b2-b2a2+b4)
a4+2a2b2+b4-a4+2a2b2-b4
4a2b2
please please mark my answer as brilliant it will help
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Answer:
a4+a2b2+b2a2+b4 -(a4-a2b2-b2a2+b4)
a4+2a2b2+b4-a4+2a2b2-b4
4a2b2
please please mark my answer as brilliant it will help