![x=-\frac{7}{18}+\frac{\sqrt[]{193} }{18}](/tpl/images/0632/1630/242b3.png)
which is the same as 
![x=-\frac{7}{18}-\frac{\sqrt[]{193} }{18}](/tpl/images/0632/1630/c3d7d.png)
which is the same as 
![x=\frac{-b\frac{+}{}\sqrt[]{b^2-4ac} }{2a}](/tpl/images/0632/1630/cf9d6.png)
![x=\frac{-7\frac{+}{}\sqrt[]{(7)^2-4(9)(-4)} }{2(9)}](/tpl/images/0632/1630/58bfe.png)
![x=\frac{-7\frac{+}{}\sqrt[]{49+144} }{18}](/tpl/images/0632/1630/8a0e2.png)
![x=\frac{-7\frac{+}{}\sqrt[]{193} }{18}](/tpl/images/0632/1630/0a2d2.png)
Solve using the quadratic formula...
9x2 - 4 + 7x...
Answers: 3
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