Question

Fractorise this
`{a}^(2) - 17a + 42`

Answer 1

`\begin{gathered} To\text{ factorize} \\ a^2-17a+42 \\ =a^2-14a-3a+42 \\ =a(a-14)-3(a-14) \\ =(a-14)(a-3) \end{gathered}`

The answer is ( a - 14) (a - 3)