Final answer:
The factored form of the quadratic expression is

Step-by-step explanation:
To factor the quadratic expression
we need to find two binomial factors. The first step is to multiply the coefficient of the x2 term (-7) with the constant term (-9).
The result is 63.
Next, we need to find two numbers that multiply to give 63 and add up to the coefficient of the x term (-24).
The numbers that satisfy this condition are -27 and 3.
So, the factored form of the quadratic expression is
