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anyanavicka [17]
3 years ago
6

If f(x) = 3x 2 + 5x, find f(-2).

Mathematics
2 answers:
kipiarov [429]3 years ago
6 0

Answer:

f(- 2) = 2

Step-by-step explanation:

To evaluate f(- 2), substitute x = - 2 into f(x)

f(- 2) = 3(- 2)² + 5(- 2) = (3 × 4) - 10 = 12 - 10 = 2

Oksana_A [137]3 years ago
3 0

Answer:

2

Step-by-step explanation:

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

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

f(-2) = 3(4) + 5(-2)

f(-2) = 12 + -10

f(-2) = 2

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