Unit 6, Lesson 6
Completing the Square
Geometry
Practice
Problem 1
Suppose a classmate missed the lessons on completing the square to find the center and radius of a circle. Explain the process to that classmate. If it helps, use a problem you’ve already done, as an example.
Problem 2
Match each expression with the value needed in the box in order for the expression to be a perfect square trinomial.
\(x^2-8x+\boxed{\phantom{3}}\)
\(x^2+20x+\boxed{\phantom{3}}\)
\(x^2-16x+\boxed{\phantom{3}}\)
\(x^2+9x+\boxed{\phantom{3}}\)
16
20.25
64
100