यदि (4) समीकरण \(2x^2-9x+n=0\) का मूल है तो (n) का मान क्या है?

If (4) is a root of \(2x^2-9x+n=0\), what is the value of (n)?

Explanation opens after your attempt
Correct Answer

B. (4)

Step 1

Concept

Putting (x=4) gives (32-36+n=0), so (n=4). Calculate each term separately.

Step 2

Why this answer is correct

The correct answer is B. (4). Putting (x=4) gives (32-36+n=0), so (n=4). Calculate each term separately.

Step 3

Exam Tip

(x=4) रखने पर (32-36+n=0) इसलिए (n=4)। गणना में हर पद अलग अलग निकालें।

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Mathematics Answer, Explanation and Revision Hints

यदि (4) समीकरण \(2x^2-9x+n=0\) का मूल है तो (n) का मान क्या है? / If (4) is a root of \(2x^2-9x+n=0\), what is the value of (n)?

Correct Answer: B. (4). Explanation: (x=4) रखने पर (32-36+n=0) इसलिए (n=4)। गणना में हर पद अलग अलग निकालें। / Putting (x=4) gives (32-36+n=0), so (n=4). Calculate each term separately.

Which concept should I revise for this Mathematics MCQ?

Putting (x=4) gives (32-36+n=0), so (n=4). Calculate each term separately.

What exam hint can help solve this Mathematics question?

(x=4) रखने पर (32-36+n=0) इसलिए (n=4)। गणना में हर पद अलग अलग निकालें।