यदि (x=2) पर \(kx^2-5x+3\) का मान (9) है, तो (k) क्या होगा?

If the value of \(kx^2-5x+3\) at (x=2) is (9), what is (k)?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

C. (4)

Step 1

Concept

Substitution gives (4k-10+3=9). Thus (4k=16) and (k=4).

Step 2

Why this answer is correct

The correct answer is C. (4). Substitution gives (4k-10+3=9). Thus (4k=16) and (k=4).

Step 3

Exam Tip

मान रखने पर (4k-10+3=9) मिलता है। इससे (4k=16) और (k=4) होगा।

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Mathematics Answer, Explanation and Revision Hints

यदि (x=2) पर \(kx^2-5x+3\) का मान (9) है, तो (k) क्या होगा? / If the value of \(kx^2-5x+3\) at (x=2) is (9), what is (k)?

Correct Answer: C. (4). Explanation: मान रखने पर (4k-10+3=9) मिलता है। इससे (4k=16) और (k=4) होगा। / Substitution gives (4k-10+3=9). Thus (4k=16) and (k=4).

Which concept should I revise for this Mathematics MCQ?

Substitution gives (4k-10+3=9). Thus (4k=16) and (k=4).

What exam hint can help solve this Mathematics question?

मान रखने पर (4k-10+3=9) मिलता है। इससे (4k=16) और (k=4) होगा।