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বর্গের সাহায্যে, সরল কর: $(2m+3n-p)^2$$+(2m-3n+p)^2$$-2(2m+3n-p)(2m-3n+p)$

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বর্গের সাহায্যে সরল করা হলো:

$(2m+3n-p)^2$$+(2m-3n+p)^2$$-2(2m+3n-p)(2m-3n+p)$

ধরি,
$(2m+3n-p)=a$ এবং $(2m-3n+p)=b$

তাহলে প্রদত্ত রাশি দাঁড়ায়,
$a^2+b^2-2ab$

$=(a-b)^2$

$=\left\{(2m+3n-p)-(2m-3n+p)\right\}^2$
[ a ও b এর মান বসিয়ে ]

$=\left(2m+3n-p-2m+3n-p\right)^2$

$=\left(6n-2p\right)^2$

$=(6n)^2-2\cdot6n\cdot2p+(2p)^2$

$=36n^2-24np+4p^2$ [Answer]
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Rules Applied :

  • $a^2-2ab+b^2=(a-b)^2$

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