Find the solutions to the equation.
begin equation . . . 2 times, x raised to the second power, plus 12 times x, minus 14 . . . equals 0 . . . end equation
A
x equals 1, comma, x equals 7
B
x equals negative 1, comma, x equals 7
C
x equals 1, comma, x equals negative 7
D
x equals negative 1, comma, x equals negative 7