Question

Please help me figure this out. No links

Answer 1

x=1 +
`√(2) ,x=1 - √(2)`

Explanation:

x.1,2=
`(-(-2)+ √((-2)^2-4.1(-1)) )/(2.1)`

apply rule -(-a)=a

`√((-2)^2+4.1.1)`

`x1,2=(-(-2)+2√(2) )/(2.1)`

x=1 +
`√(2) ,x=1 - √(2)`