Question

Help with Algebra 2??

Answer 1

correct

Answer 2

Try to square both sides of your equation, please

Answer 3

I hope you know the steps, \[x=\sqrt{3x+10} \implies x^2-3x-10=0\]
\[(x-5)(x+2)=0 \implies x = 5, -2\] it doesn't hold true when it's x = -2 that's why it's just x = 5.