Question

a2+ 2a + 1 in factorize​

Answer 1

$\sf\:a^2+2a+1\:$

$\sf\:=a^2+(1+1)a+1\:$

$\sf\:=a^2+a+a+1\:$

$\sf\:=a(a+1)+1(a+1)\:$

$\sf\:=(a+1)(a+1)\:$

Thnku ❣

Answer 2

Answer:

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Step-by-step explanation:

${a}^{2} + 2a + 1 = 0 \\ \\ {a}^{2} + a + a + 1 = 0\\ \\ a(a + 1) + 1(a + 1) = 0\\ \\ (a + 1) (a + 1) = 0 \\ \\ (a + 1) = 0 \: \: or \: \:(a + 1) = 0 \\ \\ a = - 1 \: \: or \: \:a = - 1$