Question

What is the product of the sum of 20 and 10 and the difference of 20 and 10

Answer 1

300

Explanation:

(20+10)·(20-10)

1. Simplify: 30·10

2. Multiply: 300

Answer 2

300

Explanation:

(20+10) • (20-10)

= 30 • 10

= 300