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leva [86]
3 years ago
12

Use the identity x^3+y^3+z^3−3xyz=(x+y+z)(x^2+y^2+z^2−xy−yz−zx) to determine the value of the sum of three integers given:

Mathematics
1 answer:
RoseWind [281]3 years ago
4 0

Inserting all the given information into the identity, we have

684-3(210)=(x+y+z)(110-107)\implies x+y+z=18

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