समीकरण \(x^2-3x-18=0\) का धनात्मक मूल कौन सा है?

What is the positive root of \(x^2-3x-18=0\)?

Explanation opens after your attempt
Correct Answer

A. (6)

Step 1

Concept

(x-2-3x-18=(x-6)(x+3)). Therefore the roots are (6) and (-3), and the positive root is (6).

Step 2

Why this answer is correct

The correct answer is A. (6). (x-2-3x-18=(x-6)(x+3)). Therefore the roots are (6) and (-3), and the positive root is (6).

Step 3

Exam Tip

(x-2-3x-18=(x-6)(x+3)) है। इसलिए मूल (6) और (-3) हैं तथा धनात्मक मूल (6) है।

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समीकरण \(x^2-3x-18=0\) का धनात्मक मूल कौन सा है? / What is the positive root of \(x^2-3x-18=0\)?

Correct Answer: A. (6). Explanation: (x-2-3x-18=(x-6)(x+3)) है। इसलिए मूल (6) और (-3) हैं तथा धनात्मक मूल (6) है। / (x-2-3x-18=(x-6)(x+3)). Therefore the roots are (6) and (-3), and the positive root is (6).

Which concept should I revise for this Mathematics MCQ?

(x-2-3x-18=(x-6)(x+3)). Therefore the roots are (6) and (-3), and the positive root is (6).

What exam hint can help solve this Mathematics question?

(x-2-3x-18=(x-6)(x+3)) है। इसलिए मूल (6) और (-3) हैं तथा धनात्मक मूल (6) है।