Question 204189
Very  good  setup
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1) x^2 +(x+1)^2 =613
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x^2 +x^2 +2x+ 1 =613
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2x^2 +2x -612 =0
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x^2 +x -306=0
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(x+18)(x-17) =0
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x = 17, -18
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Integers,,17,18,,,,,,,check,,17^2 +18^2 =613,,,ok
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also -18,,-17,,,,,,,check, (-17)^2 +(-18)^2 = 613,,,ok
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2) w(w+4) =621
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w^2 +4w -621=0
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(w+27)(w-23) = 0
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w = 23, -27 (not  realistic)
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Dim"s, w=23,,,L=27
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check , 23*27 = 621,,,ok
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