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22-10-2018
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[tex]f(x) = (x + 3) ^{2} - 5[/tex]

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Mathunga Mathunga

22-10-2018

Assuming that you want this simplified...

[tex]f(x) = (x + 3)^2 - 5[/tex]

[tex]--> = (x + 3)(x + 3) - 5[/tex]

Use the FOIL method and combine like terms:

[tex]f(x) = (x^2 + 3x + 3x + 9) - 5[/tex]

[tex]f(x) = x^2 + 6x + 9 - 5[/tex]

And your final answer is: [tex]f(x) = x^2 + 6x + 4[/tex]

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