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denis-greek [22]
3 years ago
11

F(x)=6x^2-x Find f(-3)

Mathematics
2 answers:
Elan Coil [88]3 years ago
5 0

Answer:

327

Step-by-step explanation:

You will plug in the -3 for x. 6 times -3 equals -18. -18 squared equals 324. 324 minus -3 equals 327.

Lera25 [3.4K]3 years ago
5 0

Answer: f(-3)=57

Step-by-step explanation:

Given the following function:

f(x)=6x^2-x

To find f(-3) you need to substitute the x value x=-3 into the function f(x) given.

Therefore, when the input value (value of the variable "x") is -3, then the ouput value is:

x=-3\\\\f(-3)=6(-3)^2-(-3)

Remember the multplication of signs:

(+)(+)=+\\(-)(-)=+\\(-)(+)=-

Then:

f(-3)=57

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