Question 91450
1) Simplify:
{{{50+sqrt(50)/5}}} Rewrite the square root as:{{{sqrt(25*2)/5}}}then take the square root of 25 (that's 5) outside the radical.
{{{50 + cross(5)*sqrt(2)/cross(5)}}} Cancel the 5's as indicated.

{{{50+sqrt(2)}}} Simplified!

2) Solve for x:
{{{sqrt(5x+5) - 15 = 0}}} Add 15 to both sides.
{{{sqrt(5x+5) = 15}}} Square both sides.
{{{5x+5 = 225}}} Subtract 5 from both sides.
{{{5x = 220}}} Finally, divide both sides by 5.
{{{x = 44}}}