Answer:
5a2-9b2
Step-by-step explanation:
combine like terms
then you get your answer
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▹ Answer
5a² - 9b²
▹ Step-by-Step Explanation
(3a² - 2ab - 4b²) + (2a² + 2ab - 5b²)
Remove the parentheses
3a² - 2ab - 4b² + (2a² + 2ab - 5b²)
Remove the opposites and collect like terms
3a² - 4b² + 2a² - 5b²
Final Answer
5a² - 9b²
Hope this helps!
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