The sum of two numbers is 12, their difference is 8. What is the difference of their squares?

ITS USEFUL for any of them 1.The sum two numbers is 12, their difference is 8. What is the difference of their squares? 2.Cot (0) = 3.The opportunity of a clock is 10.2 cm long. Find the linear speed of the tip of this opportunity as it passes through the dial of the clock. Round your answer to three decimal places in inches per second. DO NOT include the units of your answer, simply enter the number.

1. What the figures are x and yx + y = 12 x – y = 8 (x + y) (x – Y) = x ^ 2 – y ^ 2, which is the difference of their squares, if x ^ 2 – y ^ 2 = (x + y) (x – y) = 12 x 8 = 96.