SOLUTION: {{{ sqrt (x^2+10x) = x+4 }}}

Question 419986:
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!

Square both sides:

Foil the right sides (x+4)(x+4)
x^2 + 10x = x^2 + 8x + 16
;
combine the x's on the left
x^2 - x^2 + 10x - 8x = 16
2x = 16
x =
x = 8
:
:
Check in original equation

; confirms our solution of x=8