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Type: Multiple-Choice
Category: Quadratic Equations and Expressions
Level: Grade 11
Standards: HSA-REI.B.4, HSA-REI.B.4a
Author: jjstanley
Last Modified: 7 years ago

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Grade 11 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4a

Which of the following would be a correct step in completing the square to solve for the roots?

$x^2-8x-48$

$x^2-4=sqrt64$
$x^2-4=64$
$(x-4)^2=64$
$(x-4)^2=sqrt64$