Question

x²=625 решить уравнение
​

Answer 1

$x^{2}=625\\\\x^{2}-625=0\\\\x^{2}-25^{2}=0\\\\(x-25)(x+25)=0\\\\\left[\begin{array}{ccc}x-25=0\\x+25=0\end{array}\right\\\\\left[\begin{array}{ccc}x_{1}=25 \\x_{2}=-25 \end{array}\right\\\\Otvet:\boxed{25; \ -25}$