Factor this polynomial completely{x}^(2) - x - 20

Question

Factor this polynomial completely
`{x}^(2) - x - 20`

Answer 1

Step-by-step explanation

Given the expression

`x^2-x-20`

Therefore;

`\begin{gathered} x^2-x-20 \\ =x^2-5x+4x-20 \\ =x(x-5)+4(x-5) \\ =(x+4)(x-5) \end{gathered}`

Answer:

`(x+4)(x-5)`