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Given f(x) = -x² + 3x - 7, find f(-5).

User Pili
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2 Answers

5 votes

Answer:

-5
x^(2) - 22

Step-by-step explanation:

you substitute all the x values for -5. After you fill it in it should look like the following: -5
x^(2) + (-15) -7. Now you combine like tern which would be -15 & -7. Your final answer will be: -5
x^(2)- 22

User Wiseland
by
7.9k points
7 votes

Final answer:

To find f(-5), substitute -5 into the function f(x) = -x² + 3x - 7, and simplify. The steps include squaring -5, multiplying by -1, multiplying 3 by -5, and then adding all terms together, resulting in f(-5) = -47.

Step-by-step explanation:

To find f(-5) for the function f(x) = -x² + 3x - 7, we need to substitute x with -5 in the given equation and calculate the value.

Here's the step-by-step calculation:







Therefore, f(-5) = -47.

User Make
by
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