Question:`a^2`থেকে `-5a^2` এর বিয়োগফল কত ? 

A `-5a^2` 
B `-4a^2` 
C `6a^2` 
D `-6a^2` 

+ Answer
C 

+ Explanation
`a^2`থেকে `-5a^2`এর বিয়োগফল`= a^2 - (-5a^2)`

                                          `= a^2 + 5a^2 = 6a^2`

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Irin Moni

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