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

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swissgirlBest 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 \(\large 2\frac{\pm \sqrt{2}}{2}\)
 9 months ago

swissgirlBest ResponseYou've already chosen the best response.1
hmmm are you sure this is the right equation?
 9 months ago

ninashabrangBest ResponseYou've already chosen the best response.0
oh 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
 9 months ago

swissgirlBest ResponseYou've already chosen the best response.1
So what do you think?
 9 months ago

ninashabrangBest ResponseYou've already chosen the best response.0
im not sure I cant understand what you typed up there..haha
 9 months ago

swissgirlBest ResponseYou've already chosen the best response.1
So how did you get your answer?
 9 months ago

ninashabrangBest ResponseYou've already chosen the best response.0
my own answer is x=2+2 sqr 2
 9 months ago

swissgirlBest ResponseYou've already chosen the best response.1
How did you get that?
 9 months ago

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

swissgirlBest ResponseYou've already chosen the best response.1
Your answer is incorrect
 9 months ago

swissgirlBest ResponseYou've already chosen the best response.1
Look at my answer above
 9 months ago

ninashabrangBest ResponseYou've already chosen the best response.0
OH it shows now! thanks! ill review it and find my mistake!
 9 months ago

swissgirlBest ResponseYou've already chosen the best response.1
\( \large 2 \pm \frac{\sqrt{2}}{2}\)
 9 months ago
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