Do it by splitting middle term.
Then you will be able to get factors . You can learn how to split middle term by searching videos on you tube or any site.
See attached picture for steps and answer:
Answer:

Step-by-step explanation:
Here first open the inner parentheses and use the distributive property,

The graph of f(x) is a straight line passing through points (0, -7) and (7, 0)
Answer:
Deci (símbolo d) es un prefijo del Sistema Internacional que indica un factor de 10−1 (1/10) o una décima parte.