( (2x+1)(x+4) ) का क्षेत्रफल मॉडल बनाने पर (x) वाला कुल पद क्या होगा?
When making the area model of ( (2x+1)(x+4) ), what will be the total (x) term?
Explanation opens after your attempt
C. ( 9x )
Concept
The linear parts are (8x) and (x), whose sum is (9x). In exams, add both cross parts.
Why this answer is correct
The correct answer is C. ( 9x ). The linear parts are (8x) and (x), whose sum is (9x). In exams, add both cross parts.
Exam Tip
रैखिक भाग (8x) और (x) हैं, जिनका योग (9x) है। परीक्षा में दोनों क्रॉस भाग जोड़ें।
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