Question

`- x ^(2) + 2x - 6 = 0`

how to do,I don't know the step

answer is

`x = 1 - √(5) i \: \: \: \: \: or \: \: 1 + √(5) i`
​

Answer 1

there are several methods to "solve a quadratic"

you can look them all up...

Graphing, factoring, completing the square, taking roots, quadratic formula are the common methods....

given the way you are asking the question I think that you are supposed to use the quadratic formula ..

please look at the image of the formula and

realize that you problem has

a=-1

b=2

c=6

just plug in those numbers into the formula and you will get the results in the "answer"

NOTE
`√(-x)` is written as ix (
`√(-25) = 5i` )

Explanation:

x= -2+√ (2)²- (4)(-1)(-6)

(2)(-1)

and

x= -2-√ (2)²- (4)(-1)(-6)

(2)(-1)