Answer / shiva

a2-b2= (a+b)(a-b)
165)2-(164)2=(165+164)(165-164)
=329

Answer / sraboni

(165)2 - (164)2
=(164 + 1)2 - (164)2
=(164)2 + (2*164*1) + (1)2 - (164)2
=328 + 1
=329

Answer / vivek

(165)2 - (164)2 = ?

(here 2 is power both the side)

put it in formula of (a)2 - (b)2
where a=165 and b=164

(a+b)*(a-b)
now assign the values.. of a and b

(165 + 164) * (165 - 164)
= 329 * 1

hence 329 * 1= 329.. Answer

Answer / mohitkuldeep

(1)2 = 1 in base 2

Answer / archana

(165)2-(164)2=(165-164)2
=(1)2
=2.

Answer / yamuna

is 2 power or multiplication?
if power
(165)2-(164)2=(165-164)2
=(1)2
Ans is =1
if multiplication
(165)2-(164)2=2(165-164)
=2(1)
Ans is =2

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