We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
0
382
1
avatar

What's the answer to (-4 (+/-) √4 - 4(32)(5)) / (2(32))

 Aug 27, 2017
 #1
avatar+8176 
+2

\(\frac{-4\,\pm\,\sqrt{4-4(32)(5)}}{2(32)} \\~\\ =\,\frac{-4\,\pm\,\sqrt{4-640}}{64} \\~\\ =\,\frac{-4\,\pm\,\sqrt{-636}}{64} \\~\\ =\,\frac{-4\,\pm\,\sqrt{-1\cdot2\cdot2\cdot3\cdot53}}{64} \\~\\ =\, \frac{-4\,\pm\,\sqrt{-1}\,\cdot\,\sqrt{2\cdot2}\,\cdot\,\sqrt{3\cdot53}}{64} \\~\\ =\, \frac{-4\,\pm \,i\,\cdot\,2\,\cdot\,\sqrt{159}}{64} \\~\\ =\, \frac{-4\,\pm\,2i\sqrt{159}}{64}\)

 

If this is from a quadratic equation, is it    \(\frac{-4\pm\sqrt{4^2-4(32)(5)}}{2(32)} \)    ?

 Aug 27, 2017
edited by hectictar  Aug 27, 2017

8 Online Users

avatar
avatar