Question

( 82)^2 - ( 18)^2
hey plz help

Answer 1

First square the numbers
82^2=82×82=6,724
18^2=18×18=324

now,
6,724-324=6,400

It can also be done in the method using algebraic identifies

(a+b)(a-b)=a^2-b^2
(82+18)(82-18)=82^2-18^2

Hope it helps u