x2 + 8x + 6 (x2 + 8x + ) + 6 Erin was completing the square of the quadratic function in order to find the extreme value. What is the next step in the process, and what is the extreme value? A) (x + 8)2 - 58; the extreme minimum is -8 B) (x + 4)2 - 10; the extreme minimum is -4 C) (x2 + 8x + 16) + 6 - 16; the extreme minimum is -10 D) (x2 + 8x + 64) + 6 - 64; the extreme minimum is -58