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Mazyrski [523]
3 years ago
12

F(x) = 3x2 + 5x – 14 Find f(-9 )​

Mathematics
2 answers:
Alex777 [14]3 years ago
8 0

Answer:

\huge\boxed{f(-9) = 184}

Step-by-step explanation:

f(x) = 3x^2 +5x-14

Put x = -9

f(-9) = 3(-9)^2+5(-9)-14\\f(-9) = 3(81) -45-14\\f(-9) = 243-45-14\\f(-9) = 198-14\\f(-9) = 184

Nonamiya [84]3 years ago
6 0

Steps to solve:

f(-9) = 3(-9)^2 + 5(-9) - 1

~Solve using PEMDAS

f(-9) = 3(81) - 45 - 1

f(-9) = 243 - 45 - 1

f(-9) = 198 - 1

f(-9) = 197

Best of Luck!

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