Answer:
The solutions are -8 and 2. So the 4th option
Explanation:
x=-8 or x = 2
x^2 +6x-6= 10
Subtract 10 from each side
x^2 +6x-6-10= 10-10
x^2 +6x-16=0
Factor
What 2 number multiply to -16 and add to 6
8*-2 = -16
8+-2 = 6
(x+8) (x-2) =0
Using the zero product property
x+8 =0 x-2=0
x=-8 x=2
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