.

The image is a textbook page discussing solving problems using quadratic equations. Here's a summary of the tasks:

Task 1:

Find the lengths of the legs of a right triangle. One leg is 4 cm shorter than the other, and the hypotenuse is 10 cm. Use the Pythagorean theorem to find the lengths of the legs.

Task 2:

Solve the quadratic equation \( (x + 4)^2 = 20^2 \).

If you need help solving any of the tasks, let me know!