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  3. The sum of two algebraic expressions is x2- 4. If one of them is x2+ 4, then the other expression is

. The sum of two algebraic expressions is x2- 4. If one of them is x2+ 4, then the other expression is

The sum of two algebraic expressions is x2- 4. If one of them is x2+ 4, then the other expression is 

(a) -4.

(b) 4.

(c) -8.

(d) 8.

 

 

Best Answer

Ans: (c)

Explanation:

Let ‘A’ be the required addition, then

x2 + 4 + A = x2 - 4

 

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