x^-2x-14=0

Question

i need the quadratic formula

 

Answer 1

x^2-2x-14=0

[-b±√(b²-4ac)]/2a where a=1, b=-2, c=-14

[2±√(4+56)]/2

[2±√60]/2

[2±2√15]/2

1±√15

x=1+√15

x=1-√15