Question

ДАЮ 35 БАЛЛОВ!!! Помогите

Answer 1

$\displaystyle\bf\\x^{2} -16x-17=0\\\\D=(-16)^{2} -4\cdot(-17)=256+68=324=18^{2} \\\\\\x_{1} =\frac{16+18}{2} =\frac{34}{2}=17\\\\\\x_{2} =\frac{16-18}{2} =-\frac{2}{2} =-1\\\\\\Otvet:\\x_{1}=17\\\\ x_{2} =-1$