Question

find the square of 605 using the identity (a+b)square= a square+b square + 2ab

Answer 1

Answer:

366025

Step-by-step explanation:

You can break 605 to 600+5

Then 605^2=(600+5)^2

=360000+25+2*600*5

=360000+25+6000

=366025

Answer 2

(605) square

=(600+5) square =600 square +2×600×5+5 square