Question

b= 3 × 17² - 17 × 32 + 289 - 4² × 36 trebuie sa fie patrat perfect va rog rapid​

Answer 1

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Answer 2

$b=3\times17^2-17\times 32+289-4^2\times 36\\b=17(3\times 17-32+17)-16\times36$

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

$b=17(51-32+17)-16\times 36\\b=17\times36-16\times 36\\b=36(17-16)\\b=36$

36 este patrat perfect.