Question

solve by formula method 13x² - 26x + 13=0​

Answer 1

Answer:

$13x {}^{2} - 26x + 13 = 0$

$divide \: the \: equation \: by \: 13$

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

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

$x(x - 1) - 1(x - 1)$

$(x - 1)(x - 1) = 0$

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

$x - 1 = 0$

$x = 1$