Brightstorm Q & A : If f(x) = x2 + 5= find f(2n)

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answer #1

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lqez now

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Plug in 2n for X to get 2n(2)+5, Multiply, and it is 4n+5

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11617

What_ok October 18, 2010

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plug 2n in where the x is normally=(2n)2+5=4n+5

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gibby. October 18, 2010

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I assume that your function is f(x) = x^2 + 5. Replace every x in your function with 2n and simplify. f(2n) = (2n)^2 + 5 f(2n) = 4n^2 + 5 Done!

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mathguy October 19, 2010

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You replace x with 2nSo, (2n)*2 + 5Simplified, it's:4n + 5

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11728

bernie006 October 21, 2010

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