Question

sqrt{x+4}+2=x

Answer 1

subtract 2 from both sides and square both sides. you will end up with a quadratic equation. solve that for x

Answer 2

can you show me how to set that up ?

Answer 3

sqrt(x+4) = x-2
square both sides
x+4 = (x-2)^2

Answer 4

i got it down to x^2-5x=0

Answer 5

explain some more please

Answer 6

\[\sqrt{x+4}=x-2\]
\[x+4=(x-2)^{2}\]
\[x+4=x ^{2}-4x+4\]
\[x^2-4x-x=0\]
\[x ^{2}-5x=0\]

Answer 7

x(x-5)=0
x=0
x=5

Answer 8

actually 0 wouldn't work - put x=0 in your original equation...
but x=5 is good