Question

Find zeros of X2 + X + 1

Answer 1

Answer:

$x {}^{2} + x + 1 = 0$

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

$x {}^{2} + x + x + 1 = 0$

$x(x + 1) + 1(x + 1) = 0$

$(x + 1)(x + 1) = 0$

$either$

$x = - 1$

$or$

$x = - 1$