ответ
[tex] {a}^{2} + 2a + 1[/tex]
шаги
1:
[tex] \binom{(a + 1) {}^{2} }{a + 1} {}^{2} [/tex]
2:
[tex](a + 1) {}^{2} [/tex]
всё
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Answers & Comments
ответ
[tex] {a}^{2} + 2a + 1[/tex]
шаги
1:
[tex] \binom{(a + 1) {}^{2} }{a + 1} {}^{2} [/tex]
2:
[tex](a + 1) {}^{2} [/tex]
всё