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2 years ago

Pre-calc Evaluate f(2) using substitution: f(x) = 2x^3 – 3x^2– 18x-8

Mathematics

1 answer:

krek1111 [17]2 years ago

8 0

Answer:

f(2) = -40

Step-by-step explanation:

Just substitute x=2 into the function:

f(x) = 2x³ - 3x² - 18x - 8

f(2) = 2(2)³ - 3(2)² - 18(2) - 8

f(2) = 2(8) - 3(4) - 36 - 8

f(2) = 16 - 12 - 44

f(2) = 4 - 44

f(2) = -40

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