Jawaban:
Hp = {-5, -2}
Penjelasan dengan langkah-langkah:
f(x) = x² - 9 + 7x
f(n) = n² - 9 + 7n
-19 = n² + 7n - 9
0 = n² + 7n - 9 + 19
0 = n² + 7n + 10
(n + 2) (n + 5) = 0
n + 2 = 0 \/ n + 5 = 0
n = -2 n = -5
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Jawaban:
Hp = {-5, -2}
Penjelasan dengan langkah-langkah:
f(x) = x² - 9 + 7x
f(n) = n² - 9 + 7n
-19 = n² + 7n - 9
0 = n² + 7n - 9 + 19
0 = n² + 7n + 10
(n + 2) (n + 5) = 0
n + 2 = 0 \/ n + 5 = 0
n = -2 n = -5