Question

(p+q)² - (p-q)² simplify by using algebraic expressions ​

Answer 1

Answer:

4pq

Step-by-step explanation:

Identity » a² - b² = (a+b)(a-b)

(p+q)² - (p-q)²

= (p+q+p-q)(p+q-p+q)

= (2p)(2q)

= 4pq