भुजा \(x+3\) वाले वर्ग को देखकर \((x+3)^2\) का विस्तार क्या होगा?
By observing a square of side \(x+3\), what is the expansion of \((x+3)^2\)?
Explanation opens after your attempt
Correct Answer
B. \(x^2+6x+9\)
Concept
The area model has \(x^2\), two \(3x\) rectangles, and \(9\). Exam tip: the middle term comes from two equal rectangles.
Why this answer is correct
The correct answer is B. \(x^2+6x+9\). The area model has \(x^2\), two \(3x\) rectangles, and \(9\). Exam tip: the middle term comes from two equal rectangles.
Exam Tip
क्षेत्र मॉडल में \(x^2\), दो \(3x\) आयत और \(9\) वर्ग मिलते हैं। परीक्षा में बीच का पद दो समान आयतों से आता है।
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