Question

$(a + 1) {}^{2} = a {}^{2} + 2a + 1$
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Answer 1

Answer:

$(a + 1) {}^{2} = a {}^{2} + 2a + 1$

Answer 2

Step-by-step explanation:

:(a+1)(a+1)

:a(a+1)+1(a+1)

:a*a+a+a+1

:a^2+2a+1