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 one year ago
Solve 2x2  8x = 7.
I just want to know if my answer is correct. I got x=2+ 2 sqr 2
 one year ago
Solve 2x2  8x = 7. I just want to know if my answer is correct. I got x=2+ 2 sqr 2

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swissgirl
 one year ago
Best ResponseYou've already chosen the best response.1\(2x^28x+7=0\) \(A=2, B=8, C=7\) \(\large \frac{(8) \pm \sqrt{(8)^24(2)(7)}}{2(2)}\) \(\large \frac{8 \pm \sqrt{6456}}{4}\) \(\large \frac{8 \pm \sqrt{8}}{4}\) \(\large \frac{8 \pm 2\sqrt{2}}{4}\) \(\large \frac{4\pm \sqrt{2}}{2}\) OR \(\large 2\frac{\pm \sqrt{2}}{2}\)

swissgirl
 one year ago
Best ResponseYou've already chosen the best response.1hmmm are you sure this is the right equation?

ninashabrang
 one year ago
Best ResponseYou've already chosen the best response.0oh sorry these are the answer choices: negative 2 plus or minus square root of 2 negative 2 plus or minus 2 square root of 2 quantity of 2 plus or minus square root of 2 all over 2 2 plus or minus square root of 2 end root over 2

swissgirl
 one year ago
Best ResponseYou've already chosen the best response.1So what do you think?

ninashabrang
 one year ago
Best ResponseYou've already chosen the best response.0im not sure I cant understand what you typed up there..haha

swissgirl
 one year ago
Best ResponseYou've already chosen the best response.1So how did you get your answer?

ninashabrang
 one year ago
Best ResponseYou've already chosen the best response.0my own answer is x=2+2 sqr 2

swissgirl
 one year ago
Best ResponseYou've already chosen the best response.1How did you get that?

ninashabrang
 one year ago
Best ResponseYou've already chosen the best response.0its long in my notebook haha I just need to know if my answer is correct or not

swissgirl
 one year ago
Best ResponseYou've already chosen the best response.1Your answer is incorrect

swissgirl
 one year ago
Best ResponseYou've already chosen the best response.1Look at my answer above

ninashabrang
 one year ago
Best ResponseYou've already chosen the best response.0OH it shows now! thanks! ill review it and find my mistake!

swissgirl
 one year ago
Best ResponseYou've already chosen the best response.1\( \large 2 \pm \frac{\sqrt{2}}{2}\)
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