Given $f (x) = 2 x + 5$ $f (x) = 2x + 5$ ; $g (x) = 3 x^{2}$ $g (x) = 3x^2$ , what is equal to (f o g) (x)?

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Given $f (x) = 2 x + 5$ $f (x) = 2x + 5$ ; $g (x) = 3 x^{2}$ $g (x) = 3x^2$ , what is equal to (f o g) (x)?

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Answer 1 · 2016-06-26T16:39:40

$6 x^{2} + 5$ $6x^2+5$

Explanation:

(f￮g)(x)=f(g(x)

To find f(g(x)) substitute x $= 3 x^{2} the value of g(x)$ $=3x^2" the value of g(x)"$ into f(x)

$\Rightarrow f (g (x)) = f (3 x^{2}) = 2 (3 x^{2}) + 5 = 6 x^{2} + 5$ $rArrf(g(x))=f(3x^2)=2(3x^2)+5=6x^2+5$

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Given $f (x) = 2 x + 5$ $f (x) = 2x + 5$ ; $g (x) = 3 x^{2}$ $g (x) = 3x^2$ , what is equal to (f o g) (x)?

1 Answer

Explanation:

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Given f(x)=2x+5f (x) = 2x + 5; g(x)=3x2g (x) = 3x^2, what is equal to (f o g) (x)?

1 Answer

Explanation:

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Given $f (x) = 2 x + 5$ $f (x) = 2x + 5$ ; $g (x) = 3 x^{2}$ $g (x) = 3x^2$ , what is equal to (f o g) (x)?