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Complete the square in each of the following by putting in the form $(x+B)^{2}-C$$$x^{2}+4 x$$

$$(x+2)^{2}-4$$

Algebra

Chapter 0

Reviewing the Basics

Section 3

Completing the Square

Equations and Inequalities

Oregon State University

McMaster University

University of Michigan - Ann Arbor

Idaho State University

Lectures

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Complete the square in eac…

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00:18

Complete the square.$$…

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Complete the square. $…

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01:51

Multiple Choice To co…

So if we want to complete the square of this, remember, what we're going to do is come over here and take this middle term, and we're going to divide it by two. And then we're going to square it and then add and subtract it. So this would be so plus four over to squared and that we also need to track that or over to square. So let's say four over to is to, And if we square that, that would be Oregon. So let me go ahead and write this. Also be X squared, plus or X and then plus four and minus whore. And now this here should become a perfect square. Um, and the perfect square is just such a going to be whatever this term we had right here on the inside of us. So this is just gonna be X plus two squared, and then on the outside here, we still have that negative four. Yeah. So this would be our perfect square or rewriting this as a perfect square

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