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

This Question is Closed

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

anonymous
 3 years 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
 3 years ago
Best ResponseYou've already chosen the best response.1So what do you think?

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

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

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0my own answer is x=2+2 sqr 2

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

anonymous
 3 years 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
 3 years ago
Best ResponseYou've already chosen the best response.1Your answer is incorrect

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

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

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