भुजा (3p-4) वाले वर्ग के क्षेत्र मॉडल में सही विस्तार कौन सा है?
Which expansion is correct in the area model of a square with side (3p-4)?
Explanation opens after your attempt
A. \(9p^2-24p+16\)
Concept
((3p-4)2=(3p)2-2\times3p\times4+42). Exam tip: square the coefficient along with the variable.
Why this answer is correct
The correct answer is A. \(9p^2-24p+16\). ((3p-4)2=(3p)2-2\times3p\times4+42). Exam tip: square the coefficient along with the variable.
Exam Tip
((3p-4)2=(3p)2-2\times3p\times4+42) होता है। परीक्षा में गुणांक सहित वर्ग करें।
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