Subject
Govt.Jobs
Topic
সিকিউরিটি প্রিন্টিং কর্পোরেশন লি. সহকারি ব্যবস্থাপক (সাধারণ)-২৬.১১,২০২১
What is the value(s) of p such that 4x² - px + 9 is a perfect square?
What is the value(s) of p such that 4x² - px + 9 is a perfect square?
ক)
± 12খ)
8গ)
± 6Explanation
এখানে, 4x² - px + 9 এর নিশ্চয়ক b²-4ac=0 বা,(p)²-4.4.9=0 বা,p²-144=0 বা,p²=144 বা,p=±12 অতএব,P এর মান ±12 হলে 4x² - px + 9 একটি পূর্ণবর্গ সংখ্যা হবেRelated questions
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