colinfinn3 colinfinn3

29-03-2020
Mathematics

contestada

if f(x)= 7x to the second power +3x+1 then find the the value of f(-2)

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jimrgrant1 jimrgrant1

29-03-2020

Answer:

f(- 2) = 23

Step-by-step explanation:

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

f(- 2) = 7(- 2)² + 3(- 2) + 1 = 7(4) - 6 + 1 = 28 - 6 + 1 = 23

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