2ab² + 3a²b-4ab; 3ab-8ab² + 2a² Sol: (2ab² + 3a²b-4ab)- (3ab-8ab² + 2a²) =2ab² + 3a²b-4ab +-2a² =2ab²+ + 3a²b-4ab-3ab-2a² =+3a²b-
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Step-by-step explanation:
circle of the equal are congruent circle
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