यदि (p(x)=(a-4)x-5+3x-2-7) को ठीक द्विघात बहुपद बनाना हो, तो (a) का मान क्या होगा?

If (p(x)=(a-4)x-5+3x-2-7) is to be exactly a quadratic polynomial, what is the value of (a)?

Explanation opens after your attempt
Correct Answer

B. (4)

Step 1

Concept

For exactly quadratic, the coefficient of \(x^5\) must be zero. From (a-4=0), (a=4).

Step 2

Why this answer is correct

The correct answer is B. (4). For exactly quadratic, the coefficient of \(x^5\) must be zero. From (a-4=0), (a=4).

Step 3

Exam Tip

ठीक द्विघात के लिए \(x^5\) का गुणांक शून्य होना चाहिए। (a-4=0) से (a=4) मिलता है।

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यदि (p(x)=(a-4)x-5+3x-2-7) को ठीक द्विघात बहुपद बनाना हो, तो (a) का मान क्या होगा? / If (p(x)=(a-4)x-5+3x-2-7) is to be exactly a quadratic polynomial, what is the value of (a)?

Correct Answer: B. (4). Explanation: ठीक द्विघात के लिए \(x^5\) का गुणांक शून्य होना चाहिए। (a-4=0) से (a=4) मिलता है। / For exactly quadratic, the coefficient of \(x^5\) must be zero. From (a-4=0), (a=4).

Which concept should I revise for this Mathematics MCQ?

For exactly quadratic, the coefficient of \(x^5\) must be zero. From (a-4=0), (a=4).

What exam hint can help solve this Mathematics question?

ठीक द्विघात के लिए \(x^5\) का गुणांक शून्य होना चाहिए। (a-4=0) से (a=4) मिलता है।