Question

Evaluate the function f(p) = p^2 + 3p + 1 for p =- 2.

Answer 1

f(p)=p^2+3p+1 and p=-2
- subsitute p into the equation
f(p)= (-2)^2+3(-2)+1
-solve the equation
f(p)=4-6+1=-2+1=-1
f(p)=-1

Answer 2

(-2)^2 + 3(-2) + 1

4-6+1

-1