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(2a - b)²-(2a-b) -42​
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4 votes
(2a - b)²-(2a-b) -42​

User Ankit Saxena
by
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1 Answer

4 votes

Answer:

4a² - 4ab + b² - 2a + b - 42

Explanation:

(2a - b)² - (2a-b) - 42​

= (2a - b) (2a - b) - (2a - b) - 42​

= 4a² - 2ab - 2ab + b - (2a - b) - 42

= 4a² - 4ab + b - (2a - b) - 42

= 4a² - 4ab + b² - 2a + b - 42

= 4a² - 4ab + b² - 2a + b - 42

So, the answer is 4a² - 4ab + b² - 2a + b - 42

User Rastio
by
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