Question

solve for x

x^2-x=17

Answer 1

$x^2-x=17 \\ x^2-x-17=0 \\ \bigtriangleup=b^2-4ac=1-4*1*(-17)=1+68= \sqrt{69} \\ x_1= \frac{-b- \sqrt{\bigtriangleup} }{2a} = \frac{1- \sqrt{69} }{2} \\ x_2= \frac{-b+ \sqrt{\bigtriangleup} }{2a} = \frac{1+ \sqrt{69} }{2}$

Answer 2

Its Base On A Quadratic Formulas
-3.653 , 4.653