Question

Substract:
a) 2 (ab+ bc+ca ) from
ab - bc -ca​

Answer 1

Answer:

Step-by-step explanation:

2(ab+bc+ca) from ab-bc-ca

multiply 2 with variables

2ab+2bc+2ca

    ab - bc - ca

(-)  2ab+ 2bc+ 2ca

            (-)       (-)                       { signs get changes in subraction}

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3ab- 3bc - 3 ca