Wednesday
May 6, 2015

Homework Help: Algebra

Posted by Hope on Wednesday, June 3, 2009 at 8:08pm.

Use the quadratic formula to solve the equation. Give exact answers:

2x^2 -1 = 6x.

The choices are:

a) -3 + square root(7)/2, -3 - square root(7)/2
b) 3 + square root(11)/2, 3 - square root(11)/2
c) 3 + square root(7)/2, 3 - square root(7)/2
d) -3 + square root(11)/2, -3 - square root(11)/2

I attempted this problem but got none of these answers! Could you please walk me through the problem and tell me which answer is correct? Thank you so much! :)

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