Question

Factorise:
x² – 32x – 105

Answer 1

$$\begin{gathered} x^2-32x-105 \\ =x^2-35x+3x-105 \\ =x\left(x-35\right)+3\left(x-35\right) \\ =\left(x-35\right)\left(x+3\right) \end{gathered}$$