Question

8. Factorise completely by grouping properly:a²+b-ab-a.
Dont​

Answer 1

Answer:

Step 1: a² +b -ab -a

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Step 2: a² - ab +b -a

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Step 3: a( a - b ) -1( -b + a)

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In the Step 3 (-b + a) can also be written as (a-b).

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Step 4: (a-1)(a-b)