Math Problem Statement

If f(x)=x2−4xf(x)=x2−4x and g(x)=3x+5g(x)=3x+5, find f(3)+g(−5)

Solution

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Math Problem Analysis

Mathematical Concepts

Algebra
Function Evaluation
Quadratic Functions
Linear Functions

Formulas

f(x) = x^2 - 4x
g(x) = 3x + 5
f(a) + g(b) = (a^2 - 4a) + (3b + 5)

Theorems

Function Evaluation Theorem

Suitable Grade Level

Grades 8-10