Question

For the function f(x)=5x^2-7x, what is f(-3)? *

Answer 1

Answer:

The answer to your question is   f(-3) = 66

Step-by-step explanation:

Data

Function             f(x) = 5x² - 7x

Process

To find f(x), just substitute the -3 in all the x's of the original equation and simplify.

-Substitution

                          f(-3) = 5(-3)² - 7(-3)

-Simplify

                          f(-3) = 5(9) + 21

                          f(-3) = 45 + 21

-Result

                          f(-3) = 66

Answer 2

f(-3) = 66

Step-by-step explanation:

5(-3)^2-7(-3)