Jawaban:
x² + 7x = 0
x(x + 7) = 0
x = 0 atau x = -7
2x² - 6x = 0
2x(x - 3) = 0
2x = 0 atau x -3 = 0
x = 0 x = 3
3y² - 12y = 0
3y(y - 4) = 0
3y = 0 atau y - 4 = 0
y = 0 y = 4
m² - 16 = 0
(m + 4) (m - 4) = 0
m + 4 = 0 atau m - 4 = 0
m = -4 m = 4
4m² - 25 = 0
(2m + 5) (2m - 5) = 0
2m + 5 = 0 atau 2m - 5 = 0
m = -5/2 m = 5/2
9m² - 49 = 0
(3m + 7) (3m - 7) = 0
3m + 7 = 0 atau 3m - 7 = 0
m = -7/3 m = 7/3
49n² - 100 = 0
(7n + 10) (7n - 10) = 0
7n + 10 = 0 atau 7n - 10 = 0
n = -10/7 n = 10/7
x² - 5x - 24 = 0
(x - 8) (x + 3) = 0
x - 8 = 0 atau x + 3 = 0
x = 8 x = -3
x² + x - 72 = 0
(x + 9) (x - 8) = 0
x + 9 = 0 atau x - 8 = 0
x = -9 x = 8
y² - 34y + 240 = 0
(x - 24) (x - 10) = 0
x - 24 = 0 atau x - 10 = 0
x = 24 x = 10
[answer.2.content]
