व्यंजक ((u+2)x-4+(u+2)x+15) नियतांक बहुपद कब बनेगा?
When will ((u+2)x-4+(u+2)x+15) become a constant polynomial?
Explanation opens after your attempt
B. जब (u=-2)When (u=-2)
Concept
To become constant, the coefficients of both \(x^4\) and (x) must be (0). From (u+2=0), both terms disappear.
Why this answer is correct
The correct answer is B. जब (u=-2) / When (u=-2). To become constant, the coefficients of both \(x^4\) and (x) must be (0). From (u+2=0), both terms disappear.
Exam Tip
नियतांक बनने के लिए \(x^4\) और (x) दोनों के गुणांक (0) चाहिए। (u+2=0) से दोनों पद हट जाते हैं।
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