You can use FOIL (First, Outer, Inner, and Last) to expand 2 factors.
ex. (x+1)(x+3) = x^2 + 3x + 1x + 3
= x^2 + 4x + 3
Try to simplify (x-a)(x-b)(x-c)....(x-z).
Hint: It's easier than you think. Maybe write out all the terms!
Farhaan Assar
You can use FOIL (First, Outer, Inner, and Last) to expand 2 factors.
ex. (x+1)(x+3) = x^2 + 3x + 1x + 3
= x^2 + 4x + 3
Try to simplify (x-a)(x-b)(x-c)....(x-z).
Hint: It's easier than you think. Maybe write out all the terms!