Question

what should be subtracted from a^2+a^2+c^2-ab-bc-g to get ab+bc+ca+abc+g

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Answer 1

Answer:

a²+b²+c²-ab-bc-g-x=ab+bc+ca+abc+y

-x=ab+bc+ca+abc+y-a²-b²-c²+ab+bc+g

-x=2ab+2bc+ca+g+y-a²-b²-c²

x=a²+b²+c²-2ab-2bc-ca-g-y

Answer 2

answer is: -ca-abc+2a^2+c^2-2ab-2bc-2g

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