Question

radicaldin3x-4=radicaldinx+20​

Answer 1

√3x-4=√x+20

3x-4=x+20

3x-x=20+4

2x=24

x=12

Answer 2

Răspuns:

x = 12

Explicație pas cu pas:

$\displaystyle\bf\sqrt{3x-4}=\sqrt{x+20}\\\\\ (\sqrt{3x-4})^2=(\sqrt{x+20})^2\\ \\3x-4 = x+20\\\\3x-x-4=20\\\\2x = 20+4\\\\2x=24\\\\x= 24:2\\\\\displaystyle\bf\boxed{x=12}$