Question

Ayudaaaaaaaaaaaaa. con. resolucion plis​

Answer 1

Explicación paso a paso:

${1}^{2} = {3 }^{2} + {x }^{2} \\ 1 = 9 + {x }^{2} \\ {x }^{2} = 1 - 9 \\ {x}^{2} = 8 \\ x = \sqrt{8 } \\ x = 4$