Question

F(x) = 3x2 + 5x – 14 Find f(-9 )​

Answer 1

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!

Answer 2

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

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`