Learn how solve a quadratic by completing the square with fractions

Learn how solve a quadratic by completing the square with fractions

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

Created by

Quizizz Content

FREE Resource

The video tutorial covers the process of solving quadratic equations by completing the square. It begins with grouping the first two terms and factoring, followed by handling fractions and finding common denominators. The tutorial emphasizes keeping fractions instead of converting to decimals. It then moves on to simplifying and solving the equations, introducing the concept of complex numbers, which will be covered in future lessons.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in completing the square according to the video?

Factor out the greatest common factor

Find the square root of the constant term

Group the first two terms

Convert fractions to decimals

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to keep fractions instead of converting them to decimals?

Decimals are not allowed in mathematics

The process requires fractions for common denominators

Fractions are more accurate

Decimals are more difficult to work with

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What must be done before subtracting a whole number from a fraction?

Add the whole number to the fraction

Multiply the fraction by the whole number

Ensure both have the same denominator

Convert the whole number to a decimal

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the expression form after completing the square?

X squared + b/2

X + b/2 squared

X squared + b

X + b squared

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should be included when taking the square root of both sides of an equation?

Both plus and minus roots

No roots are needed

Only the positive root

Only the negative root