Factor the Quadratic Polynomial: Simplifying x² - 16x + 64

Question

Find the representation of the product of the following function

f(x)=x216x+64 f(x)=x^2-16x+64

Video Solution

Step-by-Step Solution

To find the product representation of the function f(x)=x216x+64 f(x) = x^2 - 16x + 64 , we expect it to be a perfect square trinomial.

First, recognize that the given quadratic form is a22ab+b2 a^2 - 2ab + b^2 . Comparing it with x216x+64 x^2 - 16x + 64 :

  • The first term x2 x^2 suggests a=x a = x .
  • The middle term 16x-16x can be interpreted as 2ab-2ab. So, 2a=16-2a = -16, solving gives 2b=16 2b = 16, hence b=8 b = 8 .
  • The last term (64)(64) is b2 b^2, confirms that 82=64 8^2 = 64 .

This means our expression is:

  • f(x)=(x8)2 f(x) = (x - 8)^2

Thus, the product form or factored representation of the function is (x8)2 (x-8)^2 .

The final answer is: (x8)2 (x-8)^2 .

Answer

(x8)2 (x-8)^2