## anonymous 5 years ago (x+18)^1/2+2=x

1. anonymous

-9 , -2, 7 or -2 and 7

2. anonymous

now this is where you have to isolate: $(x+18)^{\frac{1}{2}}=x-2$ $x+18=(x-2)^2=x^2-4x+4$ $x^2-5x-14=0$ $(x+2)(x-7)=0$ $x=-2$ $x=7$ but you have to check your answers!

3. anonymous

7 works, -2 does not

4. anonymous

k