Can someone help me im looking for the the x

x = 4√5

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

to Right

Equality Properties

Trigonometry

[Right Triangles Only] Pythagorean Theorem: a² + b² = c²

a is one legb is another legc is hypotenuse

Step-by-step explanation:

Step 1: Identify Variables

a = 19

b = x

c = 21

Step 2: Solve for x

Substitute [PT]:                    19² + x² = 21²Isolate x term:                      x² = 21² - 19²Exponents:                           x² = 441 - 361Subtract:                               x² = 80Isolate x:                               x = √80Simplify:                                x = 4√5

2/1 or just 2. sorry if i get this wrong