How do you solve something like this? (steps please)
√−x+2 +4=x

answer choices:
a) x=2 and x=7
b) x=7
c) x=2
d) no solution

Question

How do you solve something like this? (steps please)
√−x+2  +4=x

answer choices:
a) x=2 and x=7
b) x=7
c) x=2
d) no solution

phi · Answer

which part is inside the square root ?

anonymous · Answer

-x+2

phi · Answer

I would "move" the 4 to the other side so only the square root stuff is on the left
i.e. add -4 to both sides.

phi · Answer

then square both sides.  this gets rid of the square root, but makes the right side more complicated

anonymous · Answer

ummm so would I end up with no solution

phi · Answer

or you can test each of the choices they give you.

anonymous · Answer

It's only practice and they said the answer is no solution I was just curious as how you would solve it

anonymous · Answer

oooh ok

anonymous · Answer

can you help me with another @butterflydreamer ?
√2x+3=x

x=3 and x=−1
x=3
x=−1
No Solution

butterflydreamer · Answer

@gypsy1234  you're only allowed to ask one question in one post but :P 
i will help you this time xD
Okay try to work it out similarly to what i did above!
First step is to square both sides.

anonymous · Answer

Ok thanks, hold on

anonymous · Answer

when you square 2 do you get 2x?

anonymous · Answer

square x*

butterflydreamer · Answer

hmm.. not quite.

butterflydreamer · Answer

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