IDNLearn.com is the perfect place to get answers, share knowledge, and learn new things. Discover detailed and accurate answers to your questions from our knowledgeable and dedicated community members.

Evaluate f(3) for the function f(x) = 3x^2 + 2x - 5.

Sagot :

ANSWER

f(3) = 28

EXPLANATION

We have the function:

[tex]f(x)=3x^2\text{ + 2x - 5}[/tex]

To find the value of f(3), we have to replace x with 3 in the function and simplify:

[tex]\begin{gathered} f(3)=3(3)^2\text{ + 2(3) - 5} \\ f(3)\text{ = (3 }\cdot\text{ 9) + 6 - 5 = 27 + 6 - 5} \\ f(3)\text{ = }28 \end{gathered}[/tex]

That is the value of f(3).