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Would √x+6 -4 = x be an extraneous solution? The x + 6 are under the radicands line.

FrozenWasteland · 61-69, M
It could have extraneous solution. When you do the "square both sides" thing to get rid of the radical, you need to check.
SW-User
@FrozenWasteland arghhh I forget how to do all this
FrozenWasteland · 61-69, M
@SW-User Mr. qW shows his (excellent) work below.
SW-User
@FrozenWasteland He's excellent in a lot. I've known him for a long time.
He's a Dollbaby
X^2 +7x +10 = 0
( X + 2) ( X + 5) = 0
X = -2 or -5

-5 would be extraneous
MightyLion · 18-21, M
@questionWeaver so the -2 wouldn’t be?
@MightyLion the -2 is the only number in the solution set that works
Jenny1234 · 51-55, F
Use the quadratic formula
Ladyred · 46-50, F
Yes. The answer is yes! (;
mikeylyksit · 41-45, M
Use common core to solve it. We'll have the answer in ohhhhh....about 3 months.
Sorry I'm not a mathmation

 
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