Question:a = - 5,  b = 2, c = -1 হলে  (a + b)(b - c) এর মান কত ? 

A - 5 
B - 7 
C 9 
D - 9 

+ Answer
D 

+ Explanation
(a + b)(b - c) = (- 5 + 2)(2 - ( - 1)}

= (- 3)(3) = - 9

+ Report

Irin Moni

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