Answer: 9
Step-by-step explanation:
We need to solve this equation [tex]5a^{2}[/tex] + 5a + a + 1 while a = -2.
Therefore, we have to use direct substitution to substitute -2 for every a in the equation.
[tex]5(-2)^{2}[/tex] + 5(-2) + (-2) + 1
5(4) - 10 -2 + 1
20 - 10 - 2 + 1
9