What is the solution of the equation? square root of 2x+4 - square root of x=2 A. x = 0 and x = -16 B. x = 0 and x = 16 C. x = 0 D. x = 16 and x = -16

Question

anonymous · Answer

I don't know exactly how I should solve this problem..

anonymous · Answer

nether do i thats a head scracher

anonymous · Answer

yeah no kidding

bibby · Answer

start by writing out the equation. then add sqrt(x) to both sides and square both sides to get rid of the sqrt

anonymous · Answer

ok can you show me cause i don't do well with just explanations i do better with images

bibby · Answer

yeah, I'll do the first few steps . is this any clearer?

anonymous · Answer

yes

bibby · Answer

Do you need any further "hints"/nudging?

STart by expanding (2+sqrt(x))^2

(2+sqrt(x)) * (2+sqrt(x))

anonymous · Answer

one more hint and I think I'll be able to figure it out...

bibby · Answer

k. foil it out.

anonymous · Answer

THANKS :D

bibby · Answer

Looks like B (I think)

anonymous · Answer

Yep :D