Answer:
-11 or -1
Explanation:
Factorising x² + 12x + 11:
11 and 1 = 12
x² + 1x + 11x + 11
x (x + 1) + 11(x + 1)
(x + 11) (x + 1)
x = -11 or x = -1
1.6m questions
2.0m answers