Question

simplify a + b + c ka whole square + a minus b + c ka whole square + A + B minus C ka whole square

Answer 1

a2+b2+c2+2ab+2bc+2ca+a2+b2+c2-2ab-2bc+2ca+A2+B2+C2+2AB-2BC-2CA=a4+b4+c4+2ca+A2+B2+C2+2AB-2BC-2CA

Answer 2

the6a + 5 b + 4 C ka whole square - 68 - 5 b - 4 C ka whole square