Factor using the quadratic formula finding real irrational roots

Factor using the quadratic formula finding real irrational roots

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

Created by

Quizizz Content

FREE Resource

The video tutorial covers solving quadratic equations using the quadratic formula. It begins with an introduction and a mention of social media links. The teacher explains how to label coefficients in quadratic equations and apply the quadratic formula. The tutorial also covers the discriminant and types of solutions, including real and complex solutions. Finally, it demonstrates simplifying radicals in quadratic solutions.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step when approaching a quadratic problem?

Complete the square

Use the quadratic formula immediately

Label the coefficients a, b, and c

Guess the solution

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the quadratic formula used for?

Determining the slope of a line

Solving linear equations

Calculating the area of a square

Finding the roots of a quadratic equation

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the discriminant tell us about a quadratic equation?

The product of the solutions

The number of solutions

The type of solutions

The sum of the solutions

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the discriminant is greater than zero, what type of solutions can we expect?

No solutions

One real solution

Two real solutions

Complex solutions

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can the square root of 40 be simplified?

5 times the square root of 4

2 times the square root of 10

4 times the square root of 5

10 times the square root of 2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should you do if you cannot factor a quadratic equation?

Guess the roots

Use a calculator

Try a different equation

Use the quadratic formula

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final form of the solution for the given quadratic problem?

x = -8 ± sqrt(40) / 6

x = 4 ± sqrt(10) / 3

x = -4 ± sqrt(10) / 3

x = 8 ± sqrt(40) / 6