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19-06-2018
Mathematics

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Find(4) when f(x)=4x^2-3x+3

Respuesta :

19-06-2018

Assuming x = 4, replace each x in the equation with 4:

[tex]4(4)^{2} - 3(4) + 3[/tex]

Solve each term in parentheses:

[tex]4(4)^{2}[/tex]
[tex]4^{2} = 16[/tex]
[tex]4 \times 16 = 64[/tex]

[tex]-3(4)[/tex]
[tex]-3 \times 4 = -12[/tex]

Your equation should now look like this:

[tex]64 - 12 + 3 = 55[/tex]

f(4) will equal 55.

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