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anonymous
 one year ago
Solve x2 + 4x − 4 = 0.
x equals the quantity of negative 2 plus or minus square root 16 all over 2
x equals negative 4 plus or minus square root 2
x equals negative 2 plus or minus 2 square root 2
x equals the quantity of 4 plus or minus square root 18 all over 2
anonymous
 one year ago
Solve x2 + 4x − 4 = 0. x equals the quantity of negative 2 plus or minus square root 16 all over 2 x equals negative 4 plus or minus square root 2 x equals negative 2 plus or minus 2 square root 2 x equals the quantity of 4 plus or minus square root 18 all over 2

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay so you have to isolate x do you know how to do that?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Use the quadratic formula.\[\huge~\rm~x=\frac{ b \pm \sqrt{b^24ac} }{ 2a }\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0im stuck at \[4 \pm \sqrt{\frac{ 32 }{ 2 }}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ôkay welll to start of you have to divide the entire 4+/srt(32) by 2 not just the 32 in the square root after that you simply simplify

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Which of the following is a solution of x2 + 2x + 8? 4 + i times the square root of 7 −1 + i times the square root of 7 1 + i times the square root of 7 −4 + i times the square root of 7

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0im stuck on this one i got to \[2\pm \sqrt{\frac{ 36 }{ 2 }}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You add 32 and 4. :D Continue. dw:1438728318711:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and then that came out to what i put. that's the part that im stuck on CX
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