Math Problem Statement

Diketahuit f(x)=3x-1 dan g(x)=X²+3x+2

a. (fog) (5)

b. (gof) (x)

Solution

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Math Problem Analysis

Mathematical Concepts

Algebra
Function Composition
Quadratic Functions

Formulas

f(x) = 3x - 1
g(x) = x^2 + 3x + 2
f(g(x)) = f(42) = 125
g(f(x)) = g(3x - 1) = 9x^2 + 3x

Theorems

Function Composition

Suitable Grade Level

Grades 10-12