Expert Mathematics Quadratic Equations Class 10 Level 29

एक आयत की लंबाई (x+9) और चौड़ाई (x-6) है। क्षेत्रफल (130) हो तो सही समीकरण कौन-सा है?

A rectangle has length (x+9) and breadth (x-6). If its area is (130), which equation is correct?

Explanation opens after your attempt
Correct Answer

A. \(x^2+3x-184=0\)

Step 1

Concept

The area is ((x+9)(x-6)=130). Expanding gives \(x^2+3x-54=130\), so \(x^2+3x-184=0\).

Step 2

Why this answer is correct

The correct answer is A. \(x^2+3x-184=0\). The area is ((x+9)(x-6)=130). Expanding gives \(x^2+3x-54=130\), so \(x^2+3x-184=0\).

Step 3

Exam Tip

क्षेत्रफल ((x+9)(x-6)=130) होगा। विस्तार से \(x^2+3x-54=130\), इसलिए \(x^2+3x-184=0\)।

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एक आयत की लंबाई (x+9) और चौड़ाई (x-6) है। क्षेत्रफल (130) हो तो सही समीकरण कौन-सा है? / A rectangle has length (x+9) and breadth (x-6). If its area is (130), which equation is correct?

Correct Answer: A. \(x^2+3x-184=0\). Explanation: क्षेत्रफल ((x+9)(x-6)=130) होगा। विस्तार से \(x^2+3x-54=130\), इसलिए \(x^2+3x-184=0\)। / The area is ((x+9)(x-6)=130). Expanding gives \(x^2+3x-54=130\), so \(x^2+3x-184=0\).

Which concept should I revise for this Mathematics MCQ?

The area is ((x+9)(x-6)=130). Expanding gives \(x^2+3x-54=130\), so \(x^2+3x-184=0\).

What exam hint can help solve this Mathematics question?

क्षेत्रफल ((x+9)(x-6)=130) होगा। विस्तार से \(x^2+3x-54=130\), इसलिए \(x^2+3x-184=0\)।

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