Class 9 Book Solution from K C Nag in Linear Simultaneous Equations Question No: 6.2.8(viii)
সমাধান করো (যে কোনো পদ্ধতিতে) :
\((a-b)x+(a+b)y=a^2-2ab-b^2\)
\((a+b)(x+y)=a^2+b^2\)
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