If f(x)=x²+3x-3,then f(3) is equal to a.5 b.10 c.15 d.20​

Sagot :

Answer:

C

Step-by-step explanation:

f(x) = x² + 3x - 3 with, f(x) = 3

f(3) = 3² + 3(3) - 3

f(3) = 9 + 9 - 3

f(3) = 18 - 3

f(3) = 15