Find the length of x – Math problem

In this math video I (Susanne) explain how to solve the geometry problem by solving a quadratic equation with the quadratic formula. Mathematics explained.

00:00 Intro – Geometry problem
0:55 Solution
3:36 Solve the equation
5:50 Quadratic formula
8:56 See you later!

My German Math Channel:
​⁠ ‪@MathemaTrick‬

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