Question

solve

sqrt (2x+3) - sqrt (x+1) = 1

Answer 1

i got -3,-1

Answer 2

-3 does not work

Answer 3

so 3,-1

Answer 4

if you squared when you were solving you have to check your answers, because you might have introduced an extraneous one while squaring

Answer 5

chit, so 3

Answer 6

3 works. did you check -1?

Answer 7

i did, did not work

Answer 8

oh it looks like it does work

Answer 9

\[\sqrt{2(-1)+3}-\sqrt{-1+1}=\sqrt{1}-\sqrt{0}=1\]

Answer 10

hmm

Answer 11

ok

Answer 12

yup -1 and 3 both work

Answer 13

ty