Question

Simplify(a - b + c)(a + b + c)

Answer 1

Answer:

a^2-b^2+c^2+2ac

Step-by-step explanation:

(a - b + c)(a + b + c)

a(a + b + c)-b(a + b + c)+c(a + b + c)

a^2+ab+ac-ab-b^2-bc+ac+bc+c^2

a^2-b^2+c^2+2ac

Answer 2

Answer:

= a² + 2ac - b² + c²

Step-by-step explanation:

(a - b + c) (a + b + c)

= a(a + b + c) - b(a + b + c) + c(a + b + c)

= a² + ab + ac - ab - b² - bc + ac + bc + c²

= a² + ab - ab + ac + ac - b² - bc + bc + c²

= a² + 2ac - b² + c²