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28-09-2018
Mathematics

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given the function f(x)=3x^2-2, what is the value of f(-3)?

given the function fx3x22 what is the value of f3 class=

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kudzordzifrancis kudzordzifrancis

28-09-2018

Just plug in -3, in the function
[tex]f(x) = 3 {x }^{2} - 2[/tex]

That is;

[tex]f( - 3) = 3( - 3) {}^{2} - 2[/tex]
[tex]f( - 3) = 3(9) - 2[/tex]
[tex]f( - 3) = 27 - 2[/tex]
[tex]f( - 3) = 25[/tex]

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