Question

17. 3(a + b)2 - 5(a + b) + 2​

Answer 1

Answer:

➟ 2(a + b)² - 5(a + b) - 3  

➟ 2(a² + b² + 2ab) - 5a - 5b - 3  

➟ 2a² + 2b² + 2ab - 5a - 5b - 3  

➟ ab[2a + 2b + 2 - 5 - 5 - 3]  

➟ ab[2a + 2b - 11]  

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Step-by-step explanation:

Answer 2

Answer:

a + b + 2  

Step-by-step explanation:

3(a + b)2 - 5(a + b) + 2​

6a + 6b - 5a - 5b + 2

= a + b + 2  

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