Jawaban:
C. -1 atau 6
Penjelasan dengan langkah-langkah:
25+k²-10-5k-21=0
k² - 5k - 6 = 0
(k + 1)(k - 6) = 0
k= -1
k= 6
E. 1 atau -6
25 + k² -10 - 5k - 21 = 0
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Jawaban:
C. -1 atau 6
Penjelasan dengan langkah-langkah:
25+k²-10-5k-21=0
k² - 5k - 6 = 0
(k + 1)(k - 6) = 0
k= -1
k= 6
Jawaban:
E. 1 atau -6
Penjelasan dengan langkah-langkah:
25 + k² -10 - 5k - 21 = 0