Question

(x-5)elevado a 2=11 ME AJUDEM

Answer 1

${(x - 5)}^{2} = 11 \\ {x}^{2} - 2 \times x \times 5 - 11 = 0 \\ {x}^{2} - 10x - 11 = 0$
delta=100+4×11= 144

$x = \frac{10 - 12}{2} = \frac{ - 2}{2} = - 1 \\ \\ ou \: \: \\ \\ x = \frac{10 + 12}{2} = \frac{22}{2} = 11$