Question

x²-3x-18 ???

Answer 1

\(=\left(x-6\right)\left(x+3\right)\)

Answer 2

=(x-6)(x+3)

Answer 3

x²-3x-18= x²+3x-6x-18=(x²+3x)-(6x+18)=x(x+3)-6(x+3)=(x+3)(x-6)