somebody help me with this

Hello from MrBillDoesMath!
Answer:
(x -9)(x+2)
Discussion:
Observation: 2 * (-9) = -18 and 2 - 9 = -7 and -18, -7 are the constant term and the coefficient of x. That mean the statement factors as:
x^2 - 7x - 18 = (x -9)(x+2)
Thank you,
MrB