\(3x^2-2x-8\) में (x=-1) रखने पर मान क्या होगा?
What is the value of \(3x^2-2x-8\) when (x=-1)?
Explanation opens after your attempt
A. (-3)
Concept
(3(-1)2-2(-1)-8=3+2-8=-3). In exams, the square of a negative number is positive.
Why this answer is correct
The correct answer is A. (-3). (3(-1)2-2(-1)-8=3+2-8=-3). In exams, the square of a negative number is positive.
Exam Tip
(3(-1)2-2(-1)-8=3+2-8=-3) है। परीक्षा में ऋण संख्या का वर्ग धनात्मक होता है।
Login to save your score, XP, coins and progress.
