Answer:
(x-1)(x-42) or (x-1) x (x-42) <-----(they're basically the same thing)
Step-by-step explanation:
1. x^2-43x+42 2. x^2-x-42x+42 3. x(x-1)-42x+42 4. x(x-1)-42(x-1) 5. (x-1)(x-42)
6. answer is (x-1)(x-42)
