(2x + 3)(3x − 6) = 0
2x + 3 = 0
2x = −3
x = −1,5
или
3x − 6 = 0
3x = 6
x = 2
Ответ: −1,5 и 2

(9y + 18)(12y − 4)(36y − 72) = 0
9y + 18 = 0
9y = −18
y = −2
или
12y − 4 = 0
12y = 4
$y = \frac{4}{12} = \frac{1}{3}$
или
36y − 72 = 0
36y = 72
y = 2
Ответ: $-2; \frac{1}{3}; 2$.

(4a − 8)(6a − 10) = 0
4a − 8 = 0
4a = 8
a = 2
или
6a − 10 = 0
6a = 10
$a = \frac{10}{6} = \frac{5}{3} = 1\frac{2}{3}$
Ответ: $1\frac{2}{3}; 2$.

(4t − 1)(8t − 3)(12t − 17) = 0
4t − 1 = 0
4t = 1
$t = \frac{1}{4}$
или
8t − 3 = 0
8t = 3
$t = \frac{3}{8}$
или
12t − 17 = 0
12t = 17
$t = \frac{17}{12} = 1\frac{5}{12}$
Ответ: $\frac{1}{4}; \frac{3}{8}; 1\frac{5}{12}$.