Solve each problem by using the quadratic formula. Write solutions in simplest radical form. 2x2 – 2x – 1 = 0

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Solve each problem by using the quadratic formula. Write solutions in simplest radical form. 2x2 – 2x – 1 = 0

Mathematics
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@jagr2713 are you there?
List abc values

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Then plug it in \[\huge~x=\frac{ -b \pm \sqrt{b^2-4ac} }{ 2a } \]
Well @pooja195 is helping you lol sorry was trying to type that equation in the equation box but was having difficulty lol
@jagr2713 what do i do next, i kinda got confused!:)
ok orry u still here
yes, i had to log back in srry!
In this case, a=2, b=−2 and c=−1. so plug into the equation above
okay!
what equation?
\[x=\frac{ -b \pm \sqrt{b ^{2}-4ac} }{ 2a }\]
option c is correct
im so confused!
@danial.sheikh this is your second warning
what? i dont understand?
im in between a and c?
Giving direct answers is against our CoC http://openstudy.com/code-of-conduct
So we have a=2, b=−2 and c=−1. so plug it into the equation
sorry i didn't knew about that
Its ok :D Just dont do it again :D
\[-b+-\sqrt{b ^{2}-4ac}/2a\] use this next time
in this q ur b is -2 , a is 1 and c is -1
sorry a is 2
okay so c is correct?
solve ur self now
what what?
can you help with more questions?
just use the equation above

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