Question

Add :- ab -4a , 4b-ab , 4a-ab

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Answer 1

Step-by-step explanation:

-ab+4b

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Answer 2

Answer:

$ab - 4a + (4b - ab) + (4a - ab) \\ \\ = ab - 4a + 4b - ab + 4a - ab \\ \\ = ab - ab - ab - 4a + 4a + 4b \\ \\ = - ab + 4b \\ \\ = - b(a - 4) \\ \\ = a - 4$

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