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Grade: 9
        
If am×an=amn then m(m-2) + n(m-2) is:
a) 2n+4/n-2
b)0
c)n(2n+4)/n-1
d)n+1/n-1
one year ago

Answers : (1)

Arun
22808 Points
							
dear student
 
a^m * a^n = a^m+n
 
hence
 
m + n = mn
 
now
 
m (n – 2) + n (m – 2) = mn + mn – 2(m + n)
 
 = 2mn – 2mn = 0
one year ago
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