Math, asked by mukesh108, 1 year ago

(a+2b)(3a+b)-(a+b)(a+2b)+(a+2b)²

Answers

Answered by SUMITGUJJAR

5

(a+2b)(3a+b)-(a+b)(a+2b)+(a+2b)2=

3a2+ab+6ab+2b2-a2-2ab-ab-2b2+a2+4b2+4ab=3a2+2b2+8ab

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