A) 4(x-3) = 0
\( x - 3 = 0 \)
\( x = 3 \)
Б) 11(х - 8) = 0
\( x - 8 = 0 \)
\( x = 8 \)
B) (x-1)(x-77) = 0
\( x - 1 = 0 \) или \( x - 77 = 0 \)
\( x = 1 \) или \( x = 77 \)
Г) (х-25)(х-10) = 0
\( x - 25 = 0 \) или \( x - 10 = 0 \)
\( x = 25 \) или \( x = 10 \)
Д) (x-1/3)(x-9) = 0
\( x - \frac{1}{3} = 0 \) или \( x - 9 = 0 \)
\( x = \frac{1}{3} \) или \( x = 9 \)
E) (x-0,78)(x-2/17) = 0
\( x - 0,78 = 0 \) или \( x - \frac{2}{17} = 0 \)
\( x = 0,78 \) или \( x = \frac{2}{17} \)
Ë) x(x-3) = 0
\( x = 0 \) или \( x - 3 = 0 \)
\( x = 0 \) или \( x = 3 \)
Ж) x(x-7) = 0
\( x = 0 \) или \( x - 7 = 0 \)
\( x = 0 \) или \( x = 7 \)
3) (x-1)(x-2)(x-3) = 0
\( x - 1 = 0 \) или \( x - 2 = 0 \) или \( x - 3 = 0 \)
\( x = 1 \) или \( x = 2 \) или \( x = 3 \)
И) (2x-1)(3x-5) = 0
\( 2x - 1 = 0 \) или \( 3x - 5 = 0 \)
\( 2x = 1 \) или \( 3x = 5 \)
\( x = \frac{1}{2} \) или \( x = \frac{5}{3} \)
й) (2x-17/3)x = 0
\( 2x - \frac{17}{3} = 0 \) или \( x = 0 \)
\( 2x = \frac{17}{3} \) или \( x = 0 \)
\( x = \frac{17}{6} \) или \( x = 0 \)
K) (3x-4,5)(2/7x-1) = 0
\( 3x - 4,5 = 0 \) или \( \frac{2}{7}x - 1 = 0 \)
\( 3x = 4,5 \) или \( \frac{2}{7}x = 1 \)
\( x = 1,5 \) или \( x = \frac{7}{2} \)
Л) (2x-9,8)(9,8x-2) = 0
\( 2x - 9,8 = 0 \) или \( 9,8x - 2 = 0 \)
\( 2x = 9,8 \) или \( 9,8x = 2 \)
\( x = 4,9 \) или \( x = \frac{2}{9,8} = \frac{20}{98} = \frac{10}{49} \)
M) x(2x-1)(3x-2) = 0
\( x = 0 \) или \( 2x - 1 = 0 \) или \( 3x - 2 = 0 \)
\( x = 0 \) или \( 2x = 1 \) или \( 3x = 2 \)
\( x = 0 \) или \( x = \frac{1}{2} \) или \( x = \frac{2}{3} \)
Ответ: А) x=3; Б) x=8; В) x=1, x=77; Г) x=25, x=10; Д) x=1/3, x=9; E) x=0,78, x=2/17; Ë) x=0, x=3; Ж) x=0, x=7; 3) x=1, x=2, x=3; И) x=1/2, x=5/3; й) x=0, x=17/6; K) x=1,5, x=7/2; Л) x=4,9, x=10/49; M) x=0, x=1/2, x=2/3.