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ivolga24 [154]
2 years ago
9

If f(x) = -2x2 + x-5, what is f(3)?

Mathematics
1 answer:
Ilia_Sergeevich [38]2 years ago
7 0

Answer:

f(3) = -20

Step-by-step explanation:

Replace each instance of x in 3^2x -9 =0 with 3:

f(x) = -2x2 + x-5 =  f(x) = -2x^2 + x-5 (" ^ " represents "exponentiation")

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

f(3) = - 18 - 2 = -20

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