find value of a^2+2ab+b^2,if a=69,b=31 ? Question find value of a^2+2ab+b^2,if a=69,b=31 ? in progress 0 Math Arianna 3 months 2021-11-06T14:56:18+00:00 2021-11-06T14:56:18+00:00 2 Answers 0 views 0

## Answers ( )

Step-by-step explanation:Ithinkthisishelpful✌️Pleasemarkmeasbrainliestanswer❣️Answer:this is an identity based question

identity:

(a+b)^2=a^2+2ab+b^2therefore ans will be (69+31)^2=100^2=10000

you can prove it like this

(a+b)(a+b)

open the brackets you will get

a^2+2ab+b^2