(7х - 14)(х -11) = 0,
7х - 14=0 или х-11=0,
х=2 х=11.
1) 7x - 14 = 0; 2) x - 11 = 0
7x = 14; x = 11
x = 2
Проверка : (7 * 2 - 14)(2 - 11) = 0; (7 * 11)(11-11) = 0
ответ: x1 = 2; x2 = 11
(7х - 14)(х -11) = 0,
7х - 14=0 или х-11=0,
х=2 х=11.
1) 7x - 14 = 0; 2) x - 11 = 0
7x = 14; x = 11
x = 2
Проверка : (7 * 2 - 14)(2 - 11) = 0; (7 * 11)(11-11) = 0
ответ: x1 = 2; x2 = 11