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এখানে, 2a²+5ab+3b²=2a²+2ab+3ab+3b² = 2a(a+b)+3b(a+b) =(a+b)(2a+3b) এখন, x²+(3a+4b)x+(2a²+5ab+3b²) =x²+(a+b)x+(2a+3b)x+(a+b)(2a+3b) =x(x+a+b)+(2a+3b)(x+a+b) =(x+a+b)(x+2a+3b)
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