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x^2 - 9x + 20 = 0 యొక్క మూలాల మొత్తం

A4
B9
C5
D20
Answer & Solution
Correct answer: B. 9
ఈ సమీకరణాన్ని (x - 4)(x - 5) గా కారణాంకాలుగా విభజించవచ్చు, కాబట్టి మూలాలు 4 మరియు 5 అవుతాయి, వీటి మొత్తం 9.
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