भुजा (2x+1) वाले वर्ग के दृश्य मॉडल में कुल क्षेत्र क्या होगा?
What is the total area in the visual model of a square with side (2x+1)?
Explanation opens after your attempt
A. \(4x^2+4x+1\)
Concept
The square of (2x) is \(4x^2\), and the two rectangles have total area (4x). Exam tip: do not forget to square the coefficient.
Why this answer is correct
The correct answer is A. \(4x^2+4x+1\). The square of (2x) is \(4x^2\), and the two rectangles have total area (4x). Exam tip: do not forget to square the coefficient.
Exam Tip
(2x) का वर्ग \(4x^2\) और दो आयतों का कुल क्षेत्र (4x) है। परीक्षा में गुणांक का वर्ग करना न भूलें।
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