Question

Factor -2x^2+12x+14=0

Answer 1

x=-1,7

Answer 2

-2x^(2)+12x+14=0
Rewrite it
2x^(2)-12x-14=0
Factor 2 out
2(x^(2)-6x-7)=0
Factor the quadratic
2(x+1)(x-7)=0
Ignore the 2,
(x+1)(x-7)=0

x=-1,7

Answer 3

This is a special quadratic. Notice that a-b+c=0
For such quadratic x=-1 and x=-c/a=(-14)/(-2)=7