SOLUTION: Solve. sqrt( 7x+46 ) = x + 4

Algebra ->  Radicals -> SOLUTION: Solve. sqrt( 7x+46 ) = x + 4      Log On


   

Question 130772:
Solve.
sqrt( 7x+46 ) = x + 4
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt(7x+46)=x+4
square both sides:
7x+46=x^2+8x+16
x^2+8x-7x+16-46=0
x^2+x-30=0
(x+6)(x-5)=0
x+6=0
x=-6 answer.
x-5=0
x=5 answer.