Решите уравнение:
а) (x − 1)(x − 7) = 0;
б) (x + 2)(x − 9) = 0;
в) (x − 11)(x + 6) = 0;
г) (x + 1)(x − 1)(x − 5) = 0;
д) x(x + 3)(x + 3) = 0;
е) (x − 4)(x + 9)(x + 13) = 0.
(x − 1)(x − 7) = 0
x − 1 = 0
$x_1 = 1$
x − 7 = 0
$x_2 = 7$
(x + 2)(x − 9) = 0
x + 2 = 0
$x_1 = -2$
x − 9 = 0
$x_2 = 9$
(x − 11)(x + 6) = 0
x − 11 = 0
$x_1 = 11$
x + 6 = 0
$x_2 = -6$
(x + 1)(x − 1)(x − 5) = 0
x + 1 = 0
$x_1 = -1$
x − 1 = 0
$x_2 = 1$
x − 5 = 0
$x_3 = 5$
x(x + 3)(x + 3) = 0
$x_1 = 0$
x + 3 = 0
$x_2 = -3$
(x − 4)(x + 9)(x + 13) = 0
x − 4 = 0
$x_1 = 4$
x + 9 = 0
$x_2 = -9$
x + 13 = 0
$x_3 = -13$
Пожауйста, оцените решение
