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Licemer1 [7]
3 years ago
15

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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