Question

(a+b) (a-b) =?? please give me answer​

Answer 1

Answer:

It is equal to (a^2 - b^2).

Answer 2

Step-by-step explanation:

A + B) (A - B) → Firsts: A * A = A^2 (A squared) → Outers: A * (-B) = (-AB) → Inners: B * A = AB → Lasts: B * (-B) = (-B^2)

Now, add the products together:

A^2 + (-AB) + AB + (-B^2) =

A^2 - AB + AB - B^2 → Like terms AB cancel to get your final answer →

A^2 - B^2.