Solve x2 + 4x − 12 = 0. (1 point) x = 2, x = −6 x = −2, x = −6 x = 3, x = −4 x = −3, x = 4

Last week , donnell practiced the piano 3 hours longer than marcus . together, marcus and donnell practiced the piano 11 hours . for how many hours did each young man practiced the piano