Question

solve it's (a+b-2c)square

Answer 1

hey here is ur answer

see the attachment above

I hope this helps you

Answer 2

Here is your answer

we know that
(a+b-c)^2= a^2+b^2+c^2+2ab-2bc-2ac

so, (a+b-2c)^2= a^2+b^2+4c^2 + 2ab - 4bc - 4ac

Hope it is useful