Question

Please Help Asap

Answer 1

x-5=16
x=21
x=sqrt(21)

Answer 2

A & B are both 21 but I don't understand what it means at the end

Answer 3

me too

Answer 4

you do realize this is in the wrong subject right @SWAG?

Answer 5

I just realized -_____________________-

Answer 6

Nice job man

Answer 7

Can anyone finish helping me though

Answer 8

An extraneous solution is a solution that doesn't work
btw it's not sqrt{21}

Answer 9

It's just 21

Answer 10

\[\sqrt{x+2}=11\]
\[\sqrt{x}=9\]
\[x=81\]

Answer 11

think it's 81 , not 21

Answer 12

oh i subtracted 2 from both sides

Answer 13

uh, what zale?
You doubting my math skills?

Answer 14

^

Answer 15

i think so @Luigi0210 :-)

Answer 16

like luigi said, an extraneous solution is the solution that doesn't work. For example, if u come up with an answer where u can't divide by zero, the solution is extraneous.But the answer to your question is not extraneous, it's a solution.