English, asked by pinkyverma01595, 3 months ago

d. (-ab-bc-ca) + (2ab + 2bc + 2ca) =

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Answered by as6371815

1

Answer:

$( - ab - bc - ca) + (2ab + 2bc + 2ca) \\ \\ = - ab - bc - ca + 2ab + 2bc + 2ca \\ \\ = (2ab - ab) + (2bc - bc) + ( 2ca - ca)\\ \\ = ab + bc + ca$

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