Solve the equation by completing the square

s^2+2s-6=0

s=√7-1

s=-(√7+1)

Step-by-step explanation:

s^2+2s-6=0

or,s^2+2.s.1+1^2=6+1^2

or,(s+1)^2=6+1

or,(s+1)^2=7

or,(s+1)^2=(±√7)^2

or,s+1=±√7

either,

s=√7-1

or,

s=-(√7+1)

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x