Question

287*287-2*287*269+269*269​

Answer 1

✴HELLO MATE✴

⬇⬇ANSWER⬇⬇

Using property

(a-b)^2= (a^2-2ab+b^2) [ here a= 287 , b=269]

L.H.S-----------------------R.H.S
=(287-269)^2 = 287^2 - 2(287)(269)+269

=(18)^2 = 287×287−2×287×269+269×269

=324= 82,369- 154,406+ 72,361

=324= 324
HOPE IT HELPS U✌✌

THANKS ❤❤

Answer 2

You can get the answer by using an identity .

Replace 287 by 'a' and 269 by 'b'.

We get

a × a - 2ab + b×b

=> a^2 - 2ab + b^2

You can see that it is an identity of ( a- b)^2 = a^2 - 2ab +b^2

So it is

(a - b)^2

Put values of a and b

( 287 - 269) ^2

=> ( 18)^2

=> 324.