Question

зделайте только 5 и все​

Answer 1

$4(x-1)^{2}-16=0\\\\4(x-1)^{2}=16\\\\\Big(2(x-1)\Big)^{2} =4^{2} \\\\\\\left[\begin{array}{ccc}2(x-1)=4\\2(x-1)=-4\end{array}\right\\\\\\\left[\begin{array}{ccc}2x-2=4\\2x-2=-4\end{array}\right\\\\\\\left[\begin{array}{ccc}2x=6\\2x=-2\end{array}\right\\\\\\\left[\begin{array}{ccc}x_{1}=3 \\x_{2}=-1 \end{array}\right\\\\\\Otvet:\boxed{3 \ ; \ -1}$