Question

Solve this question ( 892 ) square with algebraic identities

Answer 1

Formula:(a+b+c)^2=(a)^2+(b)^2+(c)^2-(2)(ab+bc+c)

Solution

(800+90+2)^2= 800^2 + 90 ^2 + 2^2 -2( 800*90+90*2+800*2)

You can use this formula further to solve it.

Hope you found it helpful