\(x^2+bx+25\) पूर्ण वर्ग हो और (b) ऋणात्मक हो, तो (b) क्या होगा?
If \(x^2+bx+25\) is a perfect square and (b) is negative, what is (b)?
Explanation opens after your attempt
B. (-10)
Concept
Since \(25=5^2\), for the negative perfect square \(b=-2\cdot5=-10\). Exam tip: read the sign condition carefully.
Why this answer is correct
The correct answer is B. (-10). Since \(25=5^2\), for the negative perfect square \(b=-2\cdot5=-10\). Exam tip: read the sign condition carefully.
Exam Tip
\(25=5^2\), इसलिए ऋणात्मक पूर्ण वर्ग में \(b=-2\cdot5=-10\) है। परीक्षा में संकेत शर्त जरूर पढ़ें।
Login to save your score, XP, coins and progress.
