alleryx^2 - 9x + 20 = 0 کی جڑوں کا مجموعہ ہے
A4
B9
C5
D20
Answer & Solution
Correct answer: B. 9
مساوات کے عوامل بطور (x - 4)(x - 5)، لہذا جڑیں 4 اور 5 ہیں، جو کہ 9 کا خلاصہ ہے۔
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