use the formula to multiply (5+m) (5-m) is
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According to given question ,
The formula used is (a+b)(a-b)=a^2-b^2,
i.e (5+m)(5-m)=25-m^2 is right answer
The formula used is (a+b)(a-b)=a^2-b^2,
i.e (5+m)(5-m)=25-m^2 is right answer
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