x^2-x-2 using second sign minus
x^2 - x - 2 can be written as x^2 + (-x) + (-2).
To factor the quadratic expression x^2 - x - 2 using the minus sign as the second sign, we need to rewrite the middle term as the sum of two terms.
The middle term is -x, and we want to rewrite it as the sum of -2x and +x.
So, x^2 - x - 2 can be written as x^2 - 2x + x - 2.
Now, we can group the terms as follows:
(x^2 - 2x) + (x - 2).
Next, we factor out the greatest common factor from each group:
x(x - 2) + (x - 2).
Now, we have a common binomial factor of (x - 2), so we can factor it out:
(x - 2)(x + 1).
Therefore, the factored form of x^2 - x - 2 using the minus sign as the second sign is (x - 2)(x + 1).