Question

Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

See below.

Explanation:

The quadratic formula is
`x=(-b+/-√(b^2-4ac) )/(2a)`. Here a=1, b=1, and c=-4.

Substitute and you'll have:

`x=(-b+/-√(b^2-4ac) )/(2a) =(-1+/-√(1^2-4(1)(-4)) )/(2(1))=(-1+/-√(1+16) )/(2))=`

`(-1+/-√(17) )/(2)`