एक छात्र ने ( (x+5)2 ) को \(x^2+25\) लिखा। दृश्य मॉडल से कौन-सा भाग छूट गया?
A student wrote ( (x+5)2 ) as \(x^2+25\). Which part is missing according to the visual model?
Explanation opens after your attempt
B. ( 10x )
Concept
Two (5x) rectangles are missing, and their sum is (10x). In exams, never omit the middle term.
Why this answer is correct
The correct answer is B. ( 10x ). Two (5x) rectangles are missing, and their sum is (10x). In exams, never omit the middle term.
Exam Tip
दो (5x) आयत छूट गए हैं, जिनका योग (10x) है। परीक्षा में मध्य पद कभी न छोड़ें।
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