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shivangijorra
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M06-08 26 Jul 2025, 23:50
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I like the solution - it’s helpful.
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M06-08 15 Aug 2025, 09:57
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M06-08 15 Aug 2025, 23:15
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This is a great question that’s helpful for learning.
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M06-08 17 Aug 2025, 09:50
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I did not quite understand the solution. last steps make no sense
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M06-08 17 Aug 2025, 10:30
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chrispapadopoulos
I did not quite understand the solution. last steps make no sense
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The last step would make perfect sense if you analyze carefully.

From subtraction we got p = q + r.

Adding the two original equations gives:

q^2 + r^2 + p(q + r) = 20

Since q + r = p, that becomes p^2. So we have:

p^2 + q^2 + r^2 = 20

That’s exactly what the problem asked for.
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M06-08 29 Aug 2025, 05:15
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M06-08 01 Sep 2025, 07:39
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M06-08 11 Sep 2025, 12:56
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This is a great question that’s helpful for learning and I like the solution - it’s helpful.
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M06-08 13 Sep 2025, 09:37
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M06-08 23 Sep 2025, 22:11
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M06-08 31 Oct 2025, 06:28
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M06-08 20 Jan 2026, 10:48
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