theorem. (20)^2 + (8)^2 =

400 + 64 = 464

To find the value of the expression (20)^2 + (8)^2, we can follow these steps:

Step 1: Square the values within the parentheses.
(20)^2 = 20 * 20 = 400
(8)^2 = 8 * 8 = 64

Step 2: Add the squared values together.
400 + 64 = 464

Therefore, (20)^2 + (8)^2 equals 464.

To solve the equation (20)^2 + (8)^2, we need to calculate the squares of each number and then add them together.

First, let's find the square of 20:
(20)^2 = 20 * 20 = 400

Next, let's find the square of 8:
(8)^2 = 8 * 8 = 64

Now, let's add the two squared values together:
400 + 64 = 464

Therefore, (20)^2 + (8)^2 is equal to 464.