Question

Solve. x2 + 4x – 4 = 0

Answer 1

x=-2

Answer 2

(x+2)^2=0

Answer 3

thats not an answer choice :(

Answer 4

well then...

Answer 5

they all have a square root equation

Answer 6

oh

Answer 7

Oh ok i can help i think i'll brb ok 2@gyse94

Answer 8

\[x=\frac{ -2\pm \sqrt{{16}} }{ 2 }\]

Answer 9

oh did u already find the answer?

Answer 10

that is one of the answer choices
no not yet

Answer 11

but that one is an option

Answer 12

is this an option x=-2+2squareroot2? Sorry but i cant find the squareroot symbol on my computer

Answer 13

or wat about this is this an option -2-2squareroot2?

Answer 14

yes. how did you get that?

Answer 15

i think @Muj_14 is correct @gyse94

Answer 16

:)

Answer 17

thank you!!!

Answer 18

You're welcome!

Answer 19

\[x=\frac{ -b \pm \sqrt{b ^{2}-4ac} }{ 2a }\]
\[x=\frac{ 4\pm \sqrt{16+16} }{ 2 }\]
\[x=\frac{ 4\pm4\sqrt{2} }{ 2 }\]
\[x=2\pm2\sqrt{2}\]

Answer 20

:)