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Gabriella114id
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Vezi imaginea Gabriella114
Lightmanid

[tex]b=3\times17^2-17\times 32+289-4^2\times 36\\b=17(3\times 17-32+17)-16\times36[/tex]

289 = 17 · 17 deci a intrat si el in factorul comun.

[tex]b=17(51-32+17)-16\times 36\\b=17\times36-16\times 36\\b=36(17-16)\\b=36[/tex]

36 este patrat perfect.

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