anastashiesantiago16 anastashiesantiago16

23-02-2020
Mathematics

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Find the value of the function. Find f(3x) when f(x) = - 3x2 + 4x -12

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Hrishii Hrishii

23-02-2020

Step-by-step explanation:

[tex]f(x) = - 3 {x}^{2} + 4x - 12 \\ \\ \therefore \: f(3x) = - 3 ({3x})^{2} + 4(3x) - 12 \\ \therefore \: f(3x) = - 3 \times 9 {x}^{2} + 4 \times 3x- 12 \\ \therefore \: f(3x) = - 27 {x}^{2} + 12x- 12 [/tex]

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