Question

(a-b+c)^2 Expand using identities

Answer 1

Answer:

a² + b² + c² – 2ab – 2bc + 2ca

Step-by-step explanation:

(a - b + c)² = [a + (- b) + c]²

= a² + (-b²) + c² + 2 (a) (-b) + 2 (-b) (-c) + 2 (c) (a)

= a² + b² + c² – 2ab – 2bc + 2ca

Therefore, (a - b + c)² = a² + b² + c² – 2ab – 2bc + 2ca