Question

Encontre o valor de x
${x}^{2} + 2x + 1 = 0$
​

Answer 1

${x}^{2} + 2x + 1 = 0 \\ {x}^{2} + x + x + 1 = 0 \\ x(x + 1) + (x + 1) = 0 \\ {(x + 1)}^{2} = 0 \\ x + 1 = 0 \\ \\ x = - 1$