Question

Find x pls I'm preparing for a test ;-;

Answer 1

Answer:

x = 5

Step-by-step explanation:

12² + x² = 13²

144 + x² = 169

144 - 144 + x² = 169 - 144

x² = 25

√x² = √25

x = 5

Answer 2

Answer:

x = 5

Step-by-step explanation:

13^2 - 12 ^2 = x^2

169 - 144 = x^2

25 = x^2

$\sqrt{25} = \sqrt{x^2}$

x = 5