Question

factorise the following
x²+2x-1
please answer it fast​

Answer 1

Answer:

x=(-1±√2)

Step-by-step explanation:

x²+2x-1

by applying quadratic formula

x=[-b±√(b²-4ac)]/2a

x=[-2±√(4-4×1×-1)]/2

x=[-2±√(4+4)]/2

x=(-2±√8)/2

x=(-2±2√2)/2

x=2(-1±√2)/2

x=(-1±√2)

x=(-1+√2)

or

x=(-1-√2)