Question

Factors of x^2-2____

Answer 1

Step-by-step explanation:

x^2-x-2

First list the numbers that multiply to negative 2

1*-2 and -2*1

Now list the factors that add to -1

0-1, 2-3, -2+1, etc

Now see which numbers they both have in common

1*-2=-2 -2+1=-1

So the answer is

(x-2) (x+1)

Answer 2

a=1,b=0,c=-2

formula is -b±√b²-4ac/2a

=0±√0-(4)(1)(-2)/2(1)

=0±√0+8/2

=0±√8/2

=0±√4

=0+2,0-2

=+2,-2