पहिल्या बहुपदीतून दुसरी बहुपदी वजा करा: 2ab² + 3a²b - 4ab ; 3ab - 8ab² + 2a²b
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Solution :
Let A = 2ab² + 3a²b -4ab
B = 3ab - 8ab² + 2a²b
B - A
= 3ab-8ab²+2a²b
-(2ab²+3a²b-4ab)
= 3ab-8ab²+2a²b
-2ab²-3a²b+4ab
= 3ab+4ab-8ab²-2ab²+2a²b
-3a²b
= (3+4)ab+(-8-2)ab²+(2-3)a²b
= 7ab - 10ab² - a²b
••••
Let A = 2ab² + 3a²b -4ab
B = 3ab - 8ab² + 2a²b
B - A
= 3ab-8ab²+2a²b
-(2ab²+3a²b-4ab)
= 3ab-8ab²+2a²b
-2ab²-3a²b+4ab
= 3ab+4ab-8ab²-2ab²+2a²b
-3a²b
= (3+4)ab+(-8-2)ab²+(2-3)a²b
= 7ab - 10ab² - a²b
••••
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