Hi, I am not seeing the following step:
We are given . Therefore, , and sp by the quadratic formula....
I don't see how the got into the form . I can see the mult. the 2 and subtracted over, but I don't see how the got the term.
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In the original equation, multiply both sides by 2, bring the 1 to the LHS, and multiply both sides by . Can you see what happens?
...bad post, sorry.
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