Given F (x) = 2x + 5; G (x) = 3x^2, What Is Equal To (f O G) (x)? | Socratic

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Given #f (x) = 2x + 5#; #g (x) = 3x^2#, what is equal to (f o g) (x)? Algebra Expressions, Equations, and Functions Function Notation
1 Answer
Jim G. Jun 26, 2016

#6x^2+5#

Explanation:

(f￮g)(x)=f(g(x)

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

#rArrf(g(x))=f(3x^2)=2(3x^2)+5=6x^2+5#

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