solve each problem by using the quadratic formula. Write solutions in simplest r

label Algebra
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Write solutions in simplest radical form.

2x^2-2x-1=0

Mar 10th, 2015

Answer:

here we can write the subsequent steps:

2(x^2 - x -1/2)=0

x^2 - x -1/2 =0

x^2 - x +1/4 - 1/4 -1/2 =0

(x-1/2)^2 = 3/4

so we get:

x -1/2 = sqrt(3)/2, and

x -1/2 = -sqrt(3)/2

so your solutions are:

x = 1/2 + sqrt(3)/2,  and,  x= 1/2 - sqrt(3)/2

Mar 10th, 2015

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