Question

Minus a + b + c ka whole square barabar

Answer 1

Answer:

We know the algebraic identity, ( x + y + z )² = x² + y² + z² + 2xy + 2yz + 2zx Now , ( a - b - c )² =[ a² + ( - b )² + ( -c )² ]²

Answer 2

Step-by-step explanation:

I AM ASSUMING THA YOU ARE SAYING TO FIND (-A+B+C) ²

SO,

-A(-A+B+C) +B(-A+B+C) +C(-A+B+C)

A²-AB-AC-BA+B²+BC-AC+CB+C²

A²+B²+C²-2AB-2AC+2BC

A²+B²+C²-2(AB+AC-BC)

HOPE IT WILL HELP YOU!!!