Math, asked by keerthanabarnard, 1 month ago

(a+3b)(3a+b)-(a+3b)(a+2b)+(a+3b)2
fractions​

Answers

Answered by mohdsakib2006
1

Answer:

History helps us understand change and how the society we live in came to be. The second reason history is inescapable as a subject of serious study follows closely on the first. The past causes the present, and so the future.

Answered by avig61947
0

Step-by-step explanation:

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