( (5a-2b)2-\(25a^2+4b^2\) ) को सरल कीजिए।

Simplify ( (5a-2b)2-\(25a^2+4b^2\) ).

Explanation opens after your attempt
Correct Answer

B. (-20ab)

Step 1

Concept

The expansion is \(25a^2-20ab+4b^2\), so like terms cancel and (-20ab) remains. Exam tip: watch the negative middle term.

Step 2

Why this answer is correct

The correct answer is B. (-20ab). The expansion is \(25a^2-20ab+4b^2\), so like terms cancel and (-20ab) remains. Exam tip: watch the negative middle term.

Step 3

Exam Tip

विस्तार \(25a^2-20ab+4b^2\) है इसलिए समान पद घटकर (-20ab) बचता है। परीक्षा में ऋणात्मक मध्य पद पर ध्यान दें।

Question me issue ya doubt hai?

Answer, explanation, typing mistake ya suggestion directly hamari team ko bhejein. 📱Helpline (Call / WhatsApp): +91 7272824365

Related Mathematics Questions

FAQs

Mathematics Answer, Explanation and Revision Hints

( (5a-2b)2-\(25a^2+4b^2\) ) को सरल कीजिए। / Simplify ( (5a-2b)2-\(25a^2+4b^2\) ).

Correct Answer: B. (-20ab). Explanation: विस्तार \(25a^2-20ab+4b^2\) है इसलिए समान पद घटकर (-20ab) बचता है। परीक्षा में ऋणात्मक मध्य पद पर ध्यान दें। / The expansion is \(25a^2-20ab+4b^2\), so like terms cancel and (-20ab) remains. Exam tip: watch the negative middle term.

Which concept should I revise for this Mathematics MCQ?

The expansion is \(25a^2-20ab+4b^2\), so like terms cancel and (-20ab) remains. Exam tip: watch the negative middle term.

What exam hint can help solve this Mathematics question?

विस्तार \(25a^2-20ab+4b^2\) है इसलिए समान पद घटकर (-20ab) बचता है। परीक्षा में ऋणात्मक मध्य पद पर ध्यान दें।

Student Class Required

Select your class first

Quiz questions, daily challenge and practice pages will open according to your selected class. Class 11/12 ke liye stream bhi select karein.