If (x^2+3x+5)(x^2-3x+5)= m^2 -n^2 then m can be?
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(x^2+3x+5)(x^2-3x+5)= (x^2+5+3x)(x^2+5-3x)
(a+b)(a-b)=a^2-b^2
=(x^2+5)^2-(3x)^2= m^2 -n^2(comparing)
so, m=x^2+5
Step-by-step explanation:
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