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calculate QR

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0 30
10 20 = P
20 20

10 2 0 2 20
50 1 20 2 = Q 180 = R
60
25

QR= 10 2 0 2
50 1 20 2 20
180 = 610
60 2,430
25

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Solution Summary

Verify that P(QR) is equal to (PQ)R in this example.

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