Question

(a+b)² - (a-b)². simplify the following, (Expansion).​

Answer 1

Answer:

4ab

Step-by-step explanation:

(a+b)^2-(a-b)^2

=a^2+b^2+2ab-(a^2+b^2-2ab)

=a^2+b^2+2ab-a^2-b^2+2ab

=4ab

Answer 2

Step-by-step explanation:

(a+b)^2 - (a-b)^2

(a^2+2ab+b^2) - (a^2-2ab+b^2)

a^2+2ab+b^2-a^2+2ab-b^2

a^2-a^2+2ab+2ab+b^2-b^2

=4ab