3 years ago

Help me please and thank you!!!

Mathematics

1 answer:

loris [4]3 years ago

4 0

Answer:

f(3) = - 60

Step-by-step explanation:

To evaluate f(3) substitute x = 3 into f(x), that is

f(3) = 5(3)² - 7(4(3) + 3)

= 5(9) - 7(12 + 3)

= 45 - 7(15)

= 45 - 105

= - 60

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