Math Problem Statement

Evaluate the function

f left parenthesis x right parenthesis equals negative 3 left parenthesis x minus 4 right parenthesis squared left parenthesis x plus 2 right parenthesisf(x)=−3(x−4)2(x+2)

at the indicated values.

a.

​f(00​)

b.

​f(33​)

Question content area bottom

Part 1

a.

​f(00​)equals=enter your response here  

​(Type an integer or a simplified​ fraction.)

Part 2

b.

​f(33​)equals=enter your response here  

​(Type an integer or a simplified​ fraction.)

Solution

To evaluate the function f(x)=3(x4)2(x+2)f(x) = -3(x - 4)^2(x + 2) at the indicated values, we’ll substitute x=0x = 0 and x=3x = 3 into the function and simplify.

Part 1: f(0)f(0)

Substitute x=0x = 0 into the function: f(0)=3(04)2(0+2)f(0) = -3(0 - 4)^2(0 + 2) Simplify each part inside the parentheses: =3(4)22= -3(-4)^2 \cdot 2 =3162= -3 \cdot 16 \cdot 2 =332=96= -3 \cdot 32 = -96 So, f(0)=96f(0) = -96.

Part 2: f(3)f(3)

Substitute x=3x = 3 into the function: f(3)=3(34)2(3+2)f(3) = -3(3 - 4)^2(3 + 2) Simplify each part inside the parentheses: =3(1)25= -3(-1)^2 \cdot 5 =315= -3 \cdot 1 \cdot 5 =35=15= -3 \cdot 5 = -15 So, f(3)=15f(3) = -15.

Final Answers

  • f(0)=96f(0) = -96
  • f(3)=15f(3) = -15

Would you like further details on any part of this solution?

Here are some related questions to deepen understanding:

  1. What happens to f(x)f(x) when x=4x = 4 or x=2x = -2?
  2. How would the function change if the coefficient 3-3 were positive?
  3. How does the function behave as xx approaches very large positive or negative values?
  4. What are the roots of f(x)f(x) when set to zero?
  5. How does squaring (x4)(x - 4) affect the function's graph shape?

Tip: When evaluating functions, simplify each term step-by-step for clarity and accuracy.

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Math Problem Analysis

Mathematical Concepts

Function Evaluation
Algebra
Polynomials

Formulas

f(x) = -3(x - 4)^2(x + 2)

Theorems

Properties of Polynomials

Suitable Grade Level

Grades 10-12