Easy Mathematics Quadratic Equations Class 10 Level 31

यदि ((x-2)(x+7)=0) है तो मूल कौन से होंगे?

If ((x-2)(x+7)=0) then what are the roots?

Explanation opens after your attempt
Correct Answer

C. (2) और (-7)(2) and (-7)

Step 1

Concept

By the zero product rule (x-2=0) or (x+7=0). Hence the roots are (2) and (-7).

Step 2

Why this answer is correct

The correct answer is C. (2) और (-7) / (2) and (-7). By the zero product rule (x-2=0) or (x+7=0). Hence the roots are (2) and (-7).

Step 3

Exam Tip

शून्य गुणनफल नियम से (x-2=0) या (x+7=0) होगा। इसलिए मूल (2) और (-7) हैं।

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Mathematics Answer, Explanation and Revision Hints

यदि ((x-2)(x+7)=0) है तो मूल कौन से होंगे? / If ((x-2)(x+7)=0) then what are the roots?

Correct Answer: C. (2) और (-7) / (2) and (-7). Explanation: शून्य गुणनफल नियम से (x-2=0) या (x+7=0) होगा। इसलिए मूल (2) और (-7) हैं। / By the zero product rule (x-2=0) or (x+7=0). Hence the roots are (2) and (-7).

Which concept should I revise for this Mathematics MCQ?

By the zero product rule (x-2=0) or (x+7=0). Hence the roots are (2) and (-7).

What exam hint can help solve this Mathematics question?

शून्य गुणनफल नियम से (x-2=0) या (x+7=0) होगा। इसलिए मूल (2) और (-7) हैं।

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