Math Problem Statement

Given : f(x)=x²+5x+6 and h(x)=x+2

Given: f(x) = x² + 5x + 6 and h(x) = x + 2, solve (h - f)(x).

Solution

The expression you have provided is (hf)(x)(h - f)(x), where f(x)f(x) and h(x)h(x) are given as:

f(x)=x2+5x+6f(x) = x^2 + 5x + 6 h(x)=x+2h(x) = x + 2

To solve (hf)(x)(h - f)(x), we subtract the function f(x)f(x) from h(x)h(x).

(hf)(x)=h(x)f(x)(h - f)(x) = h(x) - f(x)

Substituting the given functions:

(hf)(x)=(x+2)(x2+5x+6)(h - f)(x) = (x + 2) - (x^2 + 5x + 6)

Now, distribute the negative sign through the second function:

(hf)(x)=x+2x25x6(h - f)(x) = x + 2 - x^2 - 5x - 6

Combine like terms:

(hf)(x)=x2+(x5x)+(26)(h - f)(x) = -x^2 + (x - 5x) + (2 - 6)

(hf)(x)=x24x4(h - f)(x) = -x^2 - 4x - 4

So the final result is:

(hf)(x)=x24x4(h - f)(x) = -x^2 - 4x - 4

Would you like more details or have any questions?

Here are 5 related questions you might find helpful:

  1. How would you find (h+f)(x)(h + f)(x) using the same functions?
  2. What is the graph of the function (hf)(x)(h - f)(x)?
  3. How do you find the roots of the equation (hf)(x)=0(h - f)(x) = 0?
  4. Can you calculate (h×f)(x)(h \times f)(x) for the given functions?
  5. What are the critical points of the function (hf)(x)(h - f)(x)?

Tip: When subtracting polynomial functions, always ensure you distribute the negative sign across all terms of the function being subtracted.

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Math Problem Analysis

Mathematical Concepts

Algebra
Function Subtraction

Formulas

f(x) = x² + 5x + 6
h(x) = x + 2

Theorems

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Suitable Grade Level

Grades 9-10