What should be added to 2a2+3ab+3b2 to obtain 5ab+b2?
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Answer:
2ab - 2b2 - 2a2
Step-by-step explanation:
5ab + b2 - ( 2a2 + 3ab + 3b2 )
= 5ab + b2 - 2a2 - 3ab - 3b2
= 2ab - 2b2 - 2a2
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