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3 years ago

Suppose f(x) = 3x2 – 2x: Find f(-4). А B -40 ОО C 56plz helpp

Mathematics

1 answer:

amid [387]3 years ago

7 0

Answer:

f(-4) = 56

Step-by-step explanation:

f(x) = 3x² - 2x

To find f(-4), substitute -4 for all the values of x in f(x).

f(-4) = 3(-4)² - 2(-4)

Square -4.

f(-4) = 3(16) - 2(-4)

Multiply 3 and 16.

f(-4) = 48 - 2(-4)

Multiply -2 and -4.

48 + 8

Add.

You had the right idea! :)

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Suppose f(x) = 3x2 – 2x: Find f(-4). А B -40 ОО C 56plz helpp​

Suppose f(x) = 3x2 – 2x: Find f(-4). А B -40 ОО C 56plz helpp