How to solve an equation by completing the square

How to solve an equation by completing the square

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial explains how to solve quadratic equations by completing the square. It begins with rearranging the equation to isolate terms, then calculates B/2 squared and adds it to both sides. The equation is rewritten as a perfect square, and finally, the solution for X is found using square roots.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in solving an equation by completing the square?

Multiply both sides by a constant

Subtract a constant from both sides

Add a constant to both sides

Transform the equation into the form X^2 + BX

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you calculate the value to add to both sides of the equation in the completing the square method?

Multiply the coefficient of X by 2 and square it

Divide the coefficient of X by 2 and square it

Add the coefficient of X to itself

Square the coefficient of X

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of rewriting the equation as a perfect square trinomial?

To simplify the equation

To eliminate the constant term

To make it easier to factor

To prepare for taking the square root

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

After rewriting the equation as a perfect square, what is the next step?

Add a constant to both sides

Multiply both sides by a constant

Subtract a constant from both sides

Take the square root of both sides

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final form of the solution when solving by completing the square?

X = sqrt(13) ± 1

X = -sqrt(13) ± 1

X = 1 ± sqrt(13)

X = -1 ± sqrt(13)