एक छात्र ने ( (2x+3)2 ) के मॉडल में मध्य पद (6x) लिखा। सही दृश्य सुधार क्या है?
A student wrote the middle term (6x) in the model of ( (2x+3)2 ). What is the correct visual correction?
Explanation opens after your attempt
A. दो (6x) पट्टियाँ जोड़ेंAdd two (6x) strips
Concept
The model has two (2x) by (3) rectangles, so the middle term is (12x). In exams, do not stop at one strip.
Why this answer is correct
The correct answer is A. दो (6x) पट्टियाँ जोड़ें / Add two (6x) strips. The model has two (2x) by (3) rectangles, so the middle term is (12x). In exams, do not stop at one strip.
Exam Tip
मॉडल में दो (2x) गुणा (3) आयत होते हैं, इसलिए मध्य पद (12x) है। परीक्षा में एक पट्टी पर नहीं रुकें।
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