भुजा (x+2y) के वर्ग से भुजा (x-y) का वर्ग घटाने पर दृश्य मॉडल कौन-सा क्षेत्रफल देता है?
When the square of side (x-y) is subtracted from the square of side (x+2y), what area does the visual model give?
Explanation opens after your attempt
Correct Answer
C. \(6xy+3y^2\)difference
Concept
((x+2y)2-(x-y)2=6xy+3y-2). In exams expand both squares and cancel equal terms.
Why this answer is correct
The correct answer is C. \(6xy+3y^2\) / difference. ((x+2y)2-(x-y)2=6xy+3y-2). In exams expand both squares and cancel equal terms.
Exam Tip
((x+2y)2-(x-y)2=6xy+3y-2) है। परीक्षा में दोनों वर्ग फैलाकर समान पद काटें।
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