कौन सा व्यंजक (x) में द्विघात व्यंजक है?
Which expression is a quadratic expression in (x)?
Explanation opens after your attempt
B. \(x^2-4x+7\)
Concept
A quadratic expression has the highest power (2). Exam tip: identify it by checking the highest power.
Why this answer is correct
The correct answer is B. \(x^2-4x+7\). A quadratic expression has the highest power (2). Exam tip: identify it by checking the highest power.
Exam Tip
द्विघात व्यंजक में चर की अधिकतम घात (2) होती है। परीक्षा में सबसे बड़ी घात देखकर पहचान करें।
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