(x=3) पर \(x^2-4x+7\) का मान क्या है?

What is the value of \(x^2-4x+7\) at (x=3)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (4)

Step 1

Concept

\(3^2-4\cdot3+7=9-12+7=4\). Exam tip: calculate stepwise with signs.

Step 2

Why this answer is correct

The correct answer is B. (4). \(3^2-4\cdot3+7=9-12+7=4\). Exam tip: calculate stepwise with signs.

Step 3

Exam Tip

\(3^2-4\cdot3+7=9-12+7=4\) है। परीक्षा में चिन्हों के साथ चरणबद्ध गणना करें।

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Mathematics Answer, Explanation and Revision Hints

(x=3) पर \(x^2-4x+7\) का मान क्या है? / What is the value of \(x^2-4x+7\) at (x=3)?

Correct Answer: B. (4). Explanation: \(3^2-4\cdot3+7=9-12+7=4\) है। परीक्षा में चिन्हों के साथ चरणबद्ध गणना करें। / \(3^2-4\cdot3+7=9-12+7=4\). Exam tip: calculate stepwise with signs.

Which concept should I revise for this Mathematics MCQ?

\(3^2-4\cdot3+7=9-12+7=4\). Exam tip: calculate stepwise with signs.

What exam hint can help solve this Mathematics question?

\(3^2-4\cdot3+7=9-12+7=4\) है। परीक्षा में चिन्हों के साथ चरणबद्ध गणना करें।